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ASN Wikibase Occurrence # 172385
Last updated: 25 April 2019
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Date:30-MAR-2013
Time:15:43
Type:Silhouette image of generic AT72 model; specific model in this crash may look slightly different
ATR 72-201
Owner/operator:Aer Lingus Regional
Registration: EI-REI
C/n / msn: 267
Fatalities:Fatalities: 0 / Occupants: 61
Other fatalities:0
Aircraft damage: Minor
Category:Incident
Location:Dublin Airport (EIDW) -   Ireland
Phase: Landing
Nature:International Scheduled Passenger
Departure airport:Edinburgh (EGPH)
Destination airport:Dublin Airport (EIDW)
Investigating agency: AAIU
Narrative:
The aircraft was operating a scheduled passenger flight from Edinburgh (EGPH) to Dublin (EIDW). Following a normal touchdown, a severe nose wheel shimmy was experienced as the aircraft decelerated below 40 kts. Subsequent inspection of the nose leg assembly revealed that the nose landing gear (NLG) torque link apex pin assembly was missing.

AAIU Probable Cause:
It is likely that corrosion of the threaded portion of the apex pin had occurred such that the serrated washer and retaining nut separated from the link pin allowing the link pin to migrate free.
AAIU Contributory Cause:
The susceptibility of the link pin material to corrosion at the threaded portion following degradation of the cadmium protection.

ATR had earlier issued OIM 2014/003.

The Operator also identified a scenario whereby the misplacement of the nose wheel chock could lead to the displacement of the serrated (locking) washer.

Sources:

http://www.aaiu.ie/sites/default/files/report-attachments/REPORT%202014-015.pdf

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


Images:

Photo of EI-REI courtesy AirHistory.net


Shannon (EINN / SNN)
27 May 2013; (c) R.A.Scholefield

Revision history:

Date/timeContributorUpdates
18-Dec-2014 21:50 harro Added
30-Dec-2014 13:44 Aerossurance Updated [Time, Narrative]

Corrections or additions? ... Edit this accident description