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| Date: | Monday 1 April 1996 |
| Time: | 11:04 LT |
| Type: |  Canadair CL-600 Challenger 600S |
| Owner/operator: | Pal-waukee Aviation |
| Registration: | N999TF |
| MSN: | 1042 |
| Total airframe hrs: | 3395 hours |
| Engine model: | ALLIED SIGNAL ALF502L2C |
| Fatalities: | Fatalities: 0 / Occupants: 9 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Raleigh, NC -
 United States of America
|
| Phase: | Approach |
| Nature: | Unknown |
| Departure airport: | Milwaukee, WI (KMKE) |
| (KRDU) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During an instrument landing system (ILS) approach the airline transport pilot noticed a discrepancy in the landing gear indicators. He raised the landing gear and lowered it again. The main landing gear indicator lights were illuminated, indicating that the main gear was extended and locked, but the nose gear light was extinguished. The light in the gear handle was off, indicating that the system was functioning properly. The pilot did not use the emergency landing gear extension system. The aircraft was landed, and the nose gear collapsed. Subsequent examination revealed an intermittently operating extend solenoid in the nose gear selector valve.
Probable Cause: the flight crew's inadequate emergency procedure in that they did not manually extend the landing gear, as specified in the airplane flight manual. A factor relating to the accident was: the intermittent operation of the extend solenoid in the nose gear selector valve.
Accident investigation:
 |
|
Sources:
NTSB ATL96LA073
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Mar-2024 19:41 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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