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ASN Wikibase Occurrence # 165482
Last updated: 26 November 2021
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Date:29-MAR-2014
Time:10:00 UTC
Type:Silhouette image of generic PA38 model; specific model in this crash may look slightly different
Piper PA-38-112 Tomahawk
Owner/operator:Avia-Rent Kft.
Registration: HA-APW
MSN: 3879A0512
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Szombathely Airport (LHSY), Szombathely, Vas -   Hungary
Phase: Taxi
Nature:Private
Departure airport:LHSY
Destination airport:LHSY
Investigating agency: TSB Hungary
Narrative:
The aircraft, a Piper PA-38-112 Tomahawk, experienced a collapse of the right main landing gear during taxi at the Szombathely Airport (LHSY), Szombathely, in Vas County. The airplane sustained substantial damage and the two occupants onboard were not injured.

Causes of the event
As a result of the investigation, the IC concluded that the occurrence had the following
causes:
The head of the inner attach bolt of the right main landing gear fractured while the airplane was moving on ground, and the broken surface showed the signs of fatigue of the material.
The bent end of the leaf spring of the right main landing gear situated at the wing moved downward, gave a push to the clamp, ripping out its front bolt.
The clamp moved away from the wing, which allowed the right main landing gear to twist backward and detach from the airplane.
Contributing factors:
The landing gear attach elements applied in the airplane were not the stronger ones specified in Service Bulletin No.1200 but those specified in Service Bulletin No. 673 which were mandatorily required by Airworthiness Directive No. 90-19-03.
The airplane was regularly operated on an airfield with grass cover where the landing gear of the airplane may occasionally be exposed to larger loads during taxiing, take-off and landing than in the case of operation on an airfield with asphalt or concrete surfaces.

Sources:

https://www.ntsb.gov/aviationquery/brief.aspx?ev_id=20140401X10104&key=1

http://www.airport-data.com/aircraft/HA-APW.html

http://www.kbsz.hu/j25/dokumentumok/eng/2014-102_en.pdf

Accident investigation:
cover
  
Investigating agency: TSB Hungary
Status: Investigation completed
Duration:
Download report: Final report


Revision history:

Date/timeContributorUpdates
15-Apr-2014 05:50 Geno Added
25-May-2020 18:03 KagurazakaHanayo Updated [Operator, Nature, Source, Narrative]
25-May-2020 18:04 harro Updated [Narrative, Accident report, ]

Corrections or additions? ... Edit this accident description