ASN Wikibase Occurrence # 48491
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| Date: | Sunday 16 November 2008 |
| Time: | 09:34 LT |
| Type: |  de Havilland Canada DHC-8-311 |
| Owner/operator: | Piedmont Airlines, opf US Airways Express |
| Registration: | N326EN |
| MSN: | 234 |
| Year of manufacture: | 1990 |
| Total airframe hrs: | 33224 hours |
| Engine model: | Pratt & Whitney PTW 123 |
| Fatalities: | Fatalities: 0 / Occupants: 38 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Philadelphia International Airport, PA (PHL/KPHL) -
 United States of America
|
| Phase: | Landing |
| Nature: | Passenger - Scheduled |
| Departure airport: | Allentown-Lehigh Valley International Airport, PA (ABE/KABE) |
| Philadelphia International Airport, PA (PHL/KPHL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane was on approach for landing. When the landing gear was selected to the extended position, the main landing gear extended properly but the nose landing gear did not. The crew performed a go-around, exited the airport airspace, and unsuccessfully attempted to extend the nose landing gear using several checklists and in consult with ground-based maintenance personnel. A subsequent fly-by of the air traffic control tower confirmed that the nose landing gear doors were open, but that the nose landing gear was not extended. The captain subsequently landed the airplane with the nose landing gear retracted and delayed lowering the nose until the slowest speed possible. The nose of the airplane contacted the runway and the airplane slid for about 525 feet before it stopped. There was no fire, and the passengers deplaned normally at the scene. On-site examination of the airplane and a laboratory examination of the nosegear components revealed that the steering links had been circumferentially loaded in tension beyond their load-carrying capacity. Failure of the steering links allowed the nosewheels to rotate in the wheel well and become wedged within the structure. Hardness testing satisfied the manufacturer's minimum requirements and no determination could be made as to when the overload occurred.
Probable Cause: The mechanical overload of the nosewheel steering links for undetermined reasons, which resulted in nose landing gear rotation and its subsequent wedging within the wheel well structure.
Accident investigation:
 |
|
Sources:
NTSB ERA09IA056
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Nov-2008 00:00 | angels one five | Added |
| 19-Nov-2008 23:51 | RokinRyan | Updated |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
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