ASN Wikibase Occurrence # 372854
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| Date: | Thursday 18 June 1987 |
| Time: | 08:56 LT |
| Type: |  Boeing 757-251 |
| Owner/operator: | Northwest Airlines, Inc. |
| Registration: | N515US |
| MSN: | 23203/88 |
| Year of manufacture: | 1986 |
| Engine model: | P&W JT9D-7 |
| Fatalities: | Fatalities: 0 / Occupants: 123 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Detroit, MI -
 United States of America
|
| Phase: | Take off |
| Nature: | Unknown |
| Departure airport: | Detroit, MI (KDTW) |
| Boston, MA (KBOS) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A NORTHWEST AIRLINES BOEING 757, OPERATING AS FLIGHT 336, SCRAPED THE TAIL CONE AREA OF THE FUSELAGE ON THE RUNWAY WHEN THE PILOT FAILED TO MAINTAIN SUFFICIENT GROUND CLEARANCE DURING ROTATION AND TAKEOFF FROM DETROIT, MICHIGAN. THE BOEING 757 FLIGHT OPERATION MANUAL STATES THAT 'NORMALLY...APPROXIMATELY 3 DEGREES PER SECOND IS A GOOD ROTATION RATE. ' ON PAGE THREE OF THE FLIGHT DATA RECORDER DATA, UNDER PITCH, IT INDICATES A PITCH CHANGE OF 5.997 DEGREES IN ONE SECOND, AND 4.922 DEGREES IN THE NEXT SECOND. THE FLIGHT OPERATION MANUAL ALSO STATES THAT 'ROTATING AT TOO FAST A RATE FOR EXISTING CONDITIONS AND/OR AN EARLY ROTATION CAN RESULT IN A TAIL STRIKE.'
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB CHI87IA163
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Mar-2024 06:56 | ASN Update Bot | Added |
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