NTSB Identification: LAX82FA119
14 CFR Part 91: General Aviation
Accident occurred Wednesday, March 24, 1982 in MARANA, AZ
Probable Cause Approval Date: 03/24/1983
Aircraft: BOEING 707-123B, registration: N752TA
Injuries: 7 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

DURING FLIGHT, A DECREASE WAS NOTED IN THE QUANTITY OF UTILITY HYDRAULIC FLUID. THE ENGINE DRIVEN PUMPS WERE SHUT OFF UNTIL JUST BEFORE LANDING. AFTER EXTENDING THE GEAR & FLAPS, THE QUANTITY INDICATED 3.5 GAL & ALL PRESSURES WERE NORMAL. AFTER TOUCHDOWN, THE #1 REVERSER LIGHT WAS SLOW TO ILLUMINATE. REPORTEDLY, REVERSE THRUST WAS DELAYED ON THE #1 & #4 ENGINES UNTIL ALL REVERSER LIGHTS WERE ON. THE LANDING ROLL WAS REPORTED AS NORMAL UNTIL THE SPEED WAS SLOWED TO ABOUT 80 KTS, THEN THE PLANE BEGAN VEERING RIGHT. THE CAPTAIN STATED HE HAD NO LEFT BRAKING OR NOSE WHEEL STEERING. THE PLANE CONTINUED OFF THE RUNWAY & THE LEFT GEAR COLLAPSED. AFTER STOPPING, THE FIRE BOTTLES WERE USED WHEN SMOKE WAS OBSERVED FROM THE #1 ENGINE. LEFT & RIGHT TIRE MARKS WERE FOUND THAT WERE 1245 & 870 FT LONG, BOTH WITH SIGNS OF INTERMITTENT INTENSITY. THE NOSE WHEEL STEERING AND SPOILERS OPERATED WHEN THE UTILITY HYDRAULIC SYSTEM WAS FIRST POWERED BY THE AUX PUMP. A STRESS CORROSION CRACK WAS FOUND WHERE THE LEFT MAIN GEAR SIDEBRACE HAD FAILED.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

DIRECTIONAL CONTROL..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

FLUID,HYDRAULIC..LOW LEVEL


Contributing Factors

THRUST REVERSER..OTHER


Contributing Factors

TERRAIN CONDITION..GROUND


Contributing Factors

LANDING GEAR,MAIN GEAR..STRESS CORROSION

Index for Mar1982 | Index of months