ASN Wikibase Occurrence # 376776
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Date: | Friday 12 July 1985 |
Time: | 04:09 LT |
Type: | Learjet 35A |
Owner/operator: | Million Air |
Registration: | N613RR |
MSN: | 35A-276 |
Total airframe hrs: | 2065 hours |
Engine model: | GARRETT TPE-731-2-2B |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Fort Worth, TX -
United States of America
|
Phase: | Landing |
Nature: | Ferry/positioning |
Departure airport: | Dallas, TX (KADS) |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THIS ACFT RAN OFF THE DEPARTURE END OF THE 4001' RUNWAY FOLLOWING A NORMAL APPROACH, TOUCHDOWN AND INITIAL BRAKING. AFTER ABOUT 1000' OF NORM BRAKING, THE ACFT BEGAN A DRIFT TO THE RIGHT WHICH WAS PARTIALLY OVERCOME BY FULL LEFT RUDDER AND ASYMMETRICAL BRAKES. AFTER DEPARTING THE RUNWAY THE ACFT ENCOUNTERED DOWN SLOPING TERRAIN WHICH CAUSED THE NOSE GEAR TO COLLAPSE AND BUCKLED THE RIGHT WING. INVESTIGATION REVEALED THAT THE BRAKE LINES ON THE LEFT MLG WERE REVERSED WHICH CAUSED ERRANT COMMAND SIGNALS TO BE TRANSMITTED TO THE ANTI-SKID CONTROL UNIT DURING HEAVY BRAKE APPLICATION, NEGATING THE ANTI-SKID FUNCTION. THE LINES HAD BEEN MIS-INSTALLED DURING THE PREVIOUS BRAKE OVERHAUL. IT WAS NOTED THAT THE MAINTENANCE MANUAL DOES NOT ADDRESS THE CRITICALITY OF PROPER HOSE INSTALLATION AND THAT EITHER HOSE MAY BE INSTALLED IN THE INBD OR OTBD BRAKE HOUSING PORTS. ACFT WAS NOT EQUIPPED WITH REVERSERS.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | FTW85FA283 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB FTW85FA283
Location
Revision history:
Date/time | Contributor | Updates |
29-Mar-2024 19:43 |
ASN Update Bot |
Added |
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