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Messages - adroth

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1
Outgoing Air Force chief to be offered new assignment — Lorenzana
By: Frances Mangosing - Reporter / @FMangosingINQ INQUIRER.net / 03:20 PM December 07, 2018

https://newsinfo.inquirer.net/1061061/outgoing-air-force-chief-to-be-offered-new-assignment-lorenzana

MANILA, Philippines — Air Force chief Lt. Gen. Galileo Gerard Kintanar Jr. would be offered a new position at the military headquarters in Camp Aguinaldo, Defense Secretary Delfin Lorenzana said.

< Edited >

Kintanar’s replacement doused speculations on social media that he was forced to retire early in connection with the ongoing modernization program of the Air Force, which the defense chief also dismissed.

“That is not true. Hindi ko na binabasa. I don’t want to dignify these people,” Lorenzana said.

< Edited >

2
Discussions about all nations and places / Kenya launches coast guard
« on: December 07, 2018, 10:36:59 PM »
Kenya launches coast guard
Jeremy Binnie, London - Jane's Defence Weekly
20 November 2018

https://www.janes.com/article/84720/kenya-launches-coast-guard?utm_campaign=PC6110_E18%20DF%20NL%20Naval%2028_11_18&utm_medium=email&utm_source=Eloqua

The new Kenya Coast Guard Service (KCGS) was officially launched by President Uhuru Kenyatta during a 19 November ceremony that saw the offshore patrol vessel (OPV) Doria commissioned as its first vessel.

< Edited >

3
ATAK Helikopterinden DEHŞET Verici Bir Hareket...

Teskilat TV
Published on May 11, 2018

https://www.youtube.com/watch?v=hjb3DV9F6ug





5
General Discussion / PAF Black Hawk in SAR colors
« on: December 07, 2018, 12:29:13 PM »

6
Videos & Images / Re: Sikorsky S-70 @ PAW
« on: December 07, 2018, 10:12:33 AM »
Used for SAR on Mt. Halcon. Photo credit to owners


7
Videos & Images / Re: Sikorsky S-70 @ PAW
« on: December 07, 2018, 10:12:08 AM »
Photos collected on Timawa over the years. Credit to photo owners






8
Videos & Images / Re: Sikorsky S-70 @ PAW
« on: December 07, 2018, 10:09:52 AM »
Photos collected on Timawa over the years. Credit to the photo owners








9
General Discussion / Re: T129 attack helicopter for the PAF?
« on: December 07, 2018, 10:06:31 AM »
Air Force chooses Black Hawk, Turkey attack choppers — Lorenzana
Patricia Lourdes Viray (philstar.com) - December 7, 2018 - 4:24pm

< Edited >

Lorenzana also confirmed that the Air Force will be acquiring attack helicopters from the Turkish Aerospace Industries.

"Its name is also 'ATAK' it's an attack helicopter... I think we can only get less than 10, maybe eight," Lorenzana said.

International online magazine The Diplomat earlier reported that the Philippines has identified the T129 ATAK multirole combat helicopters to address the requirements of the Philippine military.

The upcoming government-to-government deal between the Philippines and Turkey would serve as a landmark deal for the defense relationship between the two countries, according to the report.

Philippine officials, however, have yet to formally announce the deal.


Read more at https://www.philstar.com/headlines/2018/12/07/1875028/air-force-chooses-black-hawk-turkey-attack-choppers-lorenzana?fbclid=IwAR1zHGxP25IFhP3bHZYzQkWYtbqef6K8teTE852LXAC_FW0BcVoFj6thk6M#HOseLVxbPWoh9asU.99

10
General Discussion / Re: Black Hawks for the PAF?
« on: December 07, 2018, 10:05:30 AM »
Air Force chooses Black Hawk, Turkey attack choppers — Lorenzana
Patricia Lourdes Viray (philstar.com) - December 7, 2018 - 4:24pm

MANILA, Philippines — The Philippine Air Force has chosen to acquire the Black Hawk helicopter as replacement for the canceled combat utility chopper deal with Canada, Defense Secretary Delfin Lorenzana said.

< Edited >

"I think finally the Air Force technical working group has come up with a recommendation that the Black Hawk is the best option that they will buy," Lorenzana told reporters at the sidelines of a forum in Makati City Friday.

< Edited >

"We have limited money for that. We have only $240 million worth and the original pricing of this aircraft for the (Bell 41) we can get 16," Lorenzana said.

"Initially, the Surion we can get 10 because of the money and also the Black Hawk," the secretary said, adding that the manufacturers of the Black Hawk changed its offer so that the Philippines could get 16 choppers.

< Edited >

Read more at https://www.philstar.com/headlines/2018/12/07/1875028/air-force-chooses-black-hawk-turkey-attack-choppers-lorenzana?fbclid=IwAR1zHGxP25IFhP3bHZYzQkWYtbqef6K8teTE852LXAC_FW0BcVoFj6thk6M#HOseLVxbPWoh9asU.99

11
General Discussion / Black Hawks for the PAF?
« on: December 07, 2018, 08:59:41 AM »
Administrator’s note: See also S-70 @ PAW

=====


PH to buy US helicopters, not Russian, due to sanctions: Lorenzana
Reuters
Posted at Dec 07 2018 08:14 PM | Updated as of Dec 07 2018 08:39 PM

https://news.abs-cbn.com/news/12/07/18/ph-to-buy-us-helicopters-not-russian-due-to-sanctions-lorenzana

MANILA- The Philippines will buy 16 Black Hawk helicopters from the Sikorsky Aircraft Corp for P12.67 billion ($240 million), shunning cheaper Russian equipment due to U.S. sanctions on Russian military exports, Defense Chief Delfin Lorenzana said Friday.

< Edited >

Lorenzana said the Air Force would sign a contract early next year for the 16 Black Hawks, even though the Russians offered the second lowest price.

< Edited >

12
General Discussion / Re: Kintanar out as PAF Commanding General
« on: December 06, 2018, 07:26:35 PM »
Outgoing Air Force chief not sacked, gave way for junior officers – AFP
By Eimor P. Santos, CNN Philippines

Updated 14:35 PM PHT Thu, December 6, 2018

http://cnnphilippines.com/news/2018/12/06/Philippine-Air-Force-leadership-change.html?fbclid=IwAR0NtJ6mHOX8ytXdQxAZe7buEqLXC8NYnvAT9S2RipoC1iR7PYcXitkbyAo

Metro Manila (CNN Philippines, December 6) — The Armed Forces of the Philippines (AFP) on Thursday denied rumors that Air Force chief Lt. Gen. Galileo Gerard Kintanar Jr. was fired.

AFP public affairs chief Col. Noel Detoyato said, Kintanar – who was supposed to retire in January 2020 – stepped down so junior officers could climb up the ladder.

"It was an internal matter between officers... Nag-give way na siya (He gave way) because there are some junior officers who (have) to go up kasi mauubusan na rin ng time (because they're running out of time)," Detoyato said in a press briefing, describing the AFP as a "very dynamic and professional organization."

He dismissed claims by MaxDefense, a group of local defense enthusiasts, that Kintanar was relieved for opposing Malacañang's choice of type of helicopters to be acquired under the AFP's modernization program.

"We take it as their opinion. At the end of the day there will be 1,000 opinions but it is still their own personal opinion," Detoyato said.

The group likened Kintanar's fate to that of Former Navy Flag-Officer-In-Command Vice Admiral Ronald Joseph Mercado, who was dismissed in December 2017 for supposed insubordination that resulted in the delay of a controversial multi-billion peso frigate deal.

Detoyato said he could not describe as "fake news" MaxDefense's public Facebook post because "that is the truth that they knew."

< Edited >

13
Discussions about all nations and places / Re: Surion crash
« on: December 06, 2018, 06:39:38 PM »
H225 crisis grounds South Korea’s Surion
 
https://www.flightglobal.com/news/articles/h225-crisis-grounds-south-koreas-surion-427114/

08 JULY, 2016 SOURCE: FLIGHTGLOBAL.COM BY: GREG WALDRON SINGAPORE
South Korea has grounded its fleet of Korea Aerospace Industries (KAI) KUH-1 Surion utility helicopters, pending the replacement of gearboxes.

According to a report by state news agency Yonhap, quoting an official at Seoul’s Defence Acquisition Program Administration, Airbus Helicopters informed it that the fatal crash of an H225 in Norway was due to a “defective main gearbox”. The report adds that 57% of the Surions in military service will need their gearboxes replaced, and that Airbus will reimburse the South Korean government.

KAI confirms that it is working with Airbus Helicopters to “retrofit the defective Surions”. The rotorcraft, which resembles the AS332 Super Puma, was developed indigenously in South Korea, with extensive assistance from the European company.

Responding to the report, Airbus Helicopters states: “As the supplier of the Surion main gearbox, which bears close similarities with the AS332 L2 and EC225 LP main gearboxes, Airbus Helicopters has issued an emergency alert service bulletin calling for the withdrawal of a specific type of second-stage planet gears in order to provide increased reliability and safety across the Surion fleet.

< Edited >

Report on the air accident near Turøy, Øygarden municipality, Hordaland county, Norway 29 April 2016 with Airbus Helicopters EC 225 LP, LN-OJF, operated by CHC Helikopter Service AS

https://www.aibn.no/Aviation/Published-reports/2018-04

The main rotor suddenly detached from the helicopter without warnings. Shortly after, the helicopter impacted a small island near Turøy, northwest of Bergen. All 13 persons on board perished.

The accident was a result of a fatigue fracture in a second stage planet gear in the epicyclic module of the main rotor gearbox. Cracks initiated from a micro-pit at the surface and developed subsurface to a catastrophic failure without being detected.

There are no connections between the crew handling and the accident. The AIBN has also excluded material unconformity and mechanical failure, as well as maintenance actions by the helicopter operator.

Summary report

The accident with LN-OJF

On 29 April 2016 the main rotor suddenly detached from an Airbus Helicopters EC 225 LP Super Puma, operated by CHC Helikopter Service AS. The helicopter transported oil workers for Statoil ASA and was en route from the Gullfaks B platform in the North Sea to Bergen Airport Flesland.

The helicopter had just descended from 3,000 ft and had been established in cruise at 140 kt at 2,000 ft for about one minute. The flight was normal and the crew received no warnings before the main rotor separated from the helicopter.

The helicopter impacted a small island near Turøy, northwest of Bergen. Wreckage parts were spread over a large area of about 180,000 m2 both at land and in the sea. The main rotor fell about 550 meters north of the crash site. The impact forces destroyed the helicopter, before most of the wreckage continued into the sea. Fuel from the helicopter ignited and caused a fire onshore. All 13 persons on board perished.

Investigation findings
An extensive and complex investigation revealed that the accident was a result of a fatigue fracture in one of the eight second stage planet gears in the epicyclic module of the main rotor gearbox (MGB). The fatigue fracture initiated from a surface micro-pit in the upper outer race of the bearing, propagating subsurface while producing a limited quantity of particles from spalling, before turning towards the gear teeth and fracturing the rim of the gear without being detected.

The investigation has shown that the combination of material properties, surface treatment, design, operational loading environment and debris gave rise to a failure mode which was not previously anticipated or assessed.

There are no connections between the crew handling and the accident. Nor is there any evidence indicating that maintenance actions by the helicopter operator have contributed to this accident. The failure developed in a manner which was unlikely to be detected by the maintenance procedures and the monitoring systems fitted to LN-OJF at the time of the accident.

Certification and continued airworthiness

The design of the EC 225 LP satisfied the requirements in place at the time of certification in 2004. However, the AIBN has found weaknesses in the current European Aviation Safety Agency (EASA) Certification Specifications for Large Rotorcraft (CS-29).

The accident has clear similarities to an Airbus Helicopters AS 332 L2 Super Puma accident off the coast of Scotland in 2009 (G-REDL). This accident was also identified to be the result of fatigue fracture in a second stage planet gear, however the post-investigation actions were not sufficient to prevent another main rotor loss.

The investigation has found that only a few second stage planet gears ever reached their intended operational time before being rejected during overhaul inspections or non-scheduled MGB removals. The parts rejected against predefined maintenance criteria were not routinely examined and analysed by Airbus Helicopters in order to understand the full nature of any damage and its effect on continued airworthiness.

Lessons learned

From this investigation there are significant lessons to be learned related to gearbox design, safety assessment, fatigue evaluation, condition monitoring, certification requirements and continued airworthiness of the AS 332 L2 and the EC 225 LP helicopters, which also could be valid for other helicopter types.

Based on this investigation, the AIBN issues 12 safety recommendations.

Safety recommendation SL No. 2018/01T

The failure mode, i.e. crack formation subsurface with limited spalling initiated from a surface damage, observed in the LN-OJF accident is currently not fully understood. The investigation has shown that the combination of material properties, surface treatment, design, operational loading environment and debris gave rise to a failure mode that was not previously anticipated or assessed.

The Accident Investigation Board Norway recommends that the European Aviation Safety Agency (EASA) commission research into crack development in high-loaded case-hardened bearings in aircraft applications. An aim of the research should be the prediction of the reduction in service-life and fatigue strength as a consequence of small surface damage such as micro-pits, wear marks and roughness.

Safety recommendation SL No. 2018/02T

The MGB, which was later installed in LN-OJF, fell off a truck during transport. It was inspected, repaired and released for flight by Airbus Helicopters without detailed analysis of the potential effects on the critical characteristics of the MGB. The current regulatory framework for large rotorcraft does not make connections between the Instructions for Continued Airworthiness (ICA) and requirements for critical parts subject to an unusual event.

The Accident Investigation Board Norway recommends that the European Aviation Safety Agency (EASA) assess the need to amend the regulatory requirements with regard to procedures or Instructions for Continued Airworthiness (ICA) for critical parts on helicopters to maintain the design integrity after being subjected to any unusual event.

Safety recommendation SL No. 2018/03T

Rolling contact fatigue as observed in the LN-OJF accident was not considered during type certification, neither is it directly addressed in the current certification specifications.

The Accident Investigation Board Norway recommends that European Aviation Safety Agency (EASA) amend the Acceptable Means of Compliance (AMC) to the Certification Specifications for Large Rotorcraft (CS-29) in order to highlight the importance of different modes of component structural degradation and how these can affect crack initiation and propagation and hence fatigue life.

Safety recommendation SL No. 2018/04T

The chip detection system fitted to LN-OJF did not produce any warnings of the impending planet gear catastrophic failure, and the potential of detection was limited. The Certification Specifications for Large Rotorcraft (CS-29) do not specify the chip detection system’s functionality and performance.

The Accident Investigation Board Norway recommends that the European Aviation Safety Agency (EASA) revise the Certification Specifications for Large Rotorcraft (CS-29) to introduce requirements for MGB chip detection system performance.

Safety recommendation SL No. 2018/05T

The LN-OJF accident was a result of a fatigue fracture in one of the eight second stage planet gears in the epicyclic module of the MGB, a critical part in which cracks developed subsurface to a catastrophic failure without being detected. It might not be possible to assess the fatigue reliability of internal MGB components, or design a warning system that works with sufficient efficiency and warning time, thus the MGB should be designed fail-safe.

The Accident Investigation Board Norway recommends that the European Aviation Safety Agency (EASA) develop MGB certification specifications for large rotorcraft to introduce a design requirement that no failure of internal MGB components should lead to a catastrophic failure.

Safety recommendation SL No. 2018/06T

The investigation into the accident to LN-OJF has revealed that the tests performed during the design and certification of the Airbus Helicopters EC 225 LP were in accordance with applicable regulations. However, with regard to the risks associated with offshore operations, there is a less stringent continued operational reliability test requirement for large rotorcraft compared with the Extended Operations and All Weather Operations regime for fixed wing aircraft.

The Accident Investigation Board Norway recommends that the European Aviation Safety Agency (EASA) develop regulations for engine and helicopter operational reliability systems, which could be applied to helicopters which carry out offshore and similar operations to improve safety outcomes.

Safety recommendation SL No. 2018/07T

The investigation into the accident to LN-OJF has found that only a few second stage planet gears in Airbus Helicopters EC 225 LP and AS 332 L2 ever reached their intended operational time before being rejected during overhaul inspections or non-scheduled MGB removals. The parts rejected against predefined maintenance criteria were not routinely examined and analysed by Airbus Helicopters.

The Accident Investigation Board Norway recommends that European Aviation Safety Agency (EASA) make sure that helicopter manufacturers review their Continuing Airworthiness Programme to ensure that critical components, which are found to be beyond serviceable limits, are examined so that the full nature of any damage and its effect on continued airworthiness is understood, either resulting in changes to the maintenance programme, or design as necessary, or driving a mitigation plan to prevent or minimise such damage in the future.

Safety recommendation SL No. 2018/08T

The investigation into the accident to LN-OJF has found that only a few second stage planet gears in Airbus Helicopters EC 225 LP and AS 332 L2 ever reached their intended operational time limit before being rejected during overhaul inspections or non-scheduled MGB removals.

The Accident Investigation Board Norway recommends that the European Aviation Safety Agency (EASA) review and improve the existing provisions and procedures applicable to critical parts on helicopters in order to ensure design assumptions are correct throughout its service life.

Safety recommendation SL No. 2018/09T

The investigation into the accident to LN-OJF has demonstrated that a critical structural component could fail totally without any pre-detection by the existing monitoring means.

The Accident Investigation Board Norway recommends that the European Aviation Safety Agency (EASA) research methods for improving the detection of component degradation in helicopter epicyclic planet gear bearings.

Safety recommendation SL No. 2018/10T

During the investigation into the accident to LN-OJF, considerable time and resources by the AIBN has been drawn to request, wait for release acceptance and review of design and certification documents.

The Accident Investigation Board Norway recommends that the European Commission (DG MOVE) in collaboration with European Aviation Safety Agency (EASA) evaluates the means for ensuring that investigation authorities have effectively free access to any relevant information or records held by the owner, the certificate holder of the type design, the responsible maintenance organisation, the training organisation, the operator or the manufacturer of the aircraft, the authorities responsible for civil aviation, EASA, ANSPs and airport operators.

Safety recommendation SL No. 2018/11T

During the investigation into the accident to LN-OJF, considerable time and resources by the AIBN has been drawn to request, wait for release acceptance and review of design and certification documents. ICAO Annex 13 Chapter 5.12 does not refer explicitly to the protection of sensitive proprietary information regarding design and certification.

The Accident Investigation Board Norway recommends that the International Civil Aviation Organisation (ICAO) evaluates the means for ensuring that investigation authorities have effectively free access to any relevant information or records held by the owner, the certificate holder of the type design, the responsible maintenance organisation, the training organisation, the operator or the manufacturer of the aircraft, the authorities responsible for civil aviation, certification authorities, ANSPs and airport operators.

Safety recommendation SL No. 2018/12T

The LN-OJF accident was a result of a fatigue fracture in one of the eight second stage planet gears in the epicyclic module of the MGB, a critical part in which cracks developed subsurface to a catastrophic failure without being detected. With the knowledge from this investigation, all effort should lead to a robust design in which a single load path should demonstrate compliance to CS 29.601(a), 29.602 and 29.571 without compromising its structural integrity and not only by depending on detection systems or maintenance checks.

The Accident Investigation Board Norway recommends that Airbus Helicopters revise the type design to improve the robustness, reliability and safety of the main gearbox in AS 332 L2 and EC 225 LP.

14
Discussions about all nations and places / Re: Surion crash
« on: December 06, 2018, 06:35:35 PM »
https://www.airbus.com/helicopters/info-centre/ln-ojf-accident-investigation-status.html

< Edited >

The Accident Investigation team has identified the most probable cause of the accident as a crack in a gear wheel in the main transmission box: a hard particle caused a scratch on a roller that, due to local overloading, led to a micro pitted line on the bearing roller and outer race. This progressively damaged the outer race of the gear while producing very few spalling particles which were not detected and ultimately led to its cracking.

Prior to 2016, the available degree of scientific and technical knowledge meant it was neither foreseeable nor foreseen that a crack in a plant gear could propagate in a sub-layer, and as a result generate very low levels of detectable particles.

< Edited >

AIBN Final Report recommendation 12

The Accident Investigation Board Norway’s (AIBN) final report concludes with a series of recommendations for improving safety in the industry. Recommendation 12 addresses Airbus Helicopters and the redesign the H225 gearbox – so what have we done?

We have implemented continuous improvements to the gearbox’s design robustness through a series of new features. These include:

Reduction in the risk of outer race spalling by the replacement of planet gear bearings shown to be more reliable, while at the same time reducing the life limit of these bearings.

Improved capture of particles in the oil with the introduction of a new full flow magnetic plug (FFMP) that increases the capture rate from 12% to 50%.
Strengthened inspection criteria and equipment allowing a more detailed analysis of these particles, including very small ones through the reduction in the size of the defined surface for the epicyclic module removal from surface to 3mm.

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Possible improvements under consideration include a research project to explore the potential for widening the scope and capability of Airbus Helicopters’ future Health and Usage Monitoring System (HUMS) to provide earlier detection of potential problems with the moving components inside transmissions.

15
General Discussion / Re: Kintanar out as PAF Commanding General
« on: December 06, 2018, 03:02:02 PM »
Duterte replaces PH Air Force chief ahead of retirement
More than a year away from retirement, Philippine Air Force chief Galileo Kintanar Jr will be replaced by Western Command chief Rozzano Briguez

Pia Ranada
@piaranada
Published 1:55 PM, December 06, 2018
Updated 2:00 PM, December 06, 2018

https://www.rappler.com/nation/218336-duterte-replaces-galileo-kintanar-as-philippine-air-force-chief-december-2018

MANILA, Philippines – Philippine Air Force (PAF) chief Lieutenant General Galileo Kintanar Jr is being replaced even before his scheduled retirement in 2020.

President Rodrigo Duterte has appointed Lieutenant General Rozzano Briguez as the PAF's new commanding general.

Malacañang released Briguez's designation papers on Thursday, December 6. Duterte signed them on Wednesday, December 5. Briguez's appointment took effect that day.

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