ASN Wikibase Occurrence # 360531
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| Date: | Sunday 1 May 1994 |
| Time: | 14:09 LT |
| Type: |  Fokker 100 |
| Owner/operator: | USAir |
| Registration: | N890US |
| MSN: | 11365 |
| Total airframe hrs: | 5845 hours |
| Engine model: | Rolls-Royce TAY MK650-15 |
| Fatalities: | Fatalities: 0 / Occupants: 94 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Charlotte, NC -
 United States of America
|
| Phase: | |
| Nature: | Unknown |
| Departure airport: | Detroit, MI (KDTW) |
| (KCLT) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE FLIGHTCREW REPORTED THAT WHILE EXTENDING THE LANDING GEAR, THE NOSE GEAR DID NOT INDICATE DOWN AND LOCKED. AFTER FURTHER ATTEMPTS TO LOWER THE NOSE GEAR WERE UNSUCCESSFUL, THE AIRCRAFT WAS LANDED WITH THE NOSE GEAR NOT DOWN AND LOCKED. INSPECTION REVEALED THAT THE NOSEWHEEL STEERING SYSTEM WAS INCORRECTLY RIGGED; THE NOSE GEAR WOULD NOT PROPERLY CENTER ITSELF, AND THE NOSEWHEEL STEERING CABLE TENSIONS WERE BELOW REQUIRED LIMITS. THIS RESULTED IN A SITUATION WHERE THE NOSE GEAR WOULD IMPINGE ON THE SIDE WALL OF THE GEAR WELL, PREVENTING EXTENSION. THE AIRCRAFT MANUFACTURER REPORTED THAT IT REQUIRED A COMBINATION OF NOSE GEAR MISRIGGING, WITH REDUCED CABLE TENSIONS, TO DUPLICATE THIS SCENARIO. ABOUT TWO WEEKS PRIOR TO THE INCIDENT, THE NOSEWHEEL STEERING CONTROL VALVE WAS REPLACED, WHICH WOULD HAVE REQUIRED A CHECK OF THE NOSE GEAR RIGGING.
Probable Cause: THE IMPROPER RIGGING OF THE NOSE WHEEL STEERING SYSTEM BY COMPANY MAINTENANCE PERSONNEL.
Accident investigation:
 |
|
Sources:
NTSB ATL94IA088
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 08:21 | ASN Update Bot | Added |
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