Cessna 150M N9433U

Summary

On 6 February 1991 at about 17:31 local time, a Cessna 150M registered N9433U, operated by Action Aviation, was involved in an accident near Buckeye, Arizona, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

6 February 1991 at 17:31

Classification

Accident

Location

Buckeye, Arizona, United States

Coordinates

33.3797, -112.5490

Aircraft

Cessna 150M

Registration

N9433U

Category

Airplane

Engines

1

Operator

Action Aviation

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Glendale → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

LAX91LA092

Nobody was injured.

THAT MAINTENANCE PERSONNEL FAILED TO PROPERLY INSTALL THE WINGS BY NOT RECONNECTING THE BOLTS AT THE BELLCRANK AND PERFORMED AN INADEQUATE ANNUAL INSPECTION.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

THE CFI AND NONCERTIFICATED STUDENT PILOT DEPARTED GOODYEAR, AZ, ON A DUAL INSTRUCTIONAL FLIGHT. WHILE PRACTICING GROUND REFERENCE MANEUVERS THE AIRPLANE SUSTAINED A LOSS OF AILERON CONTROL. THE CFI EXECUTED A FORCED LANDING INTO A DRYWASH. THE AIRPLANE COLLIDED WITH A BERM DURING THE LANDING ROLL. THE WRECKAGE EXAMINATION DISCLOSED THAT ONE OF THE AILERON CABLES DISCONNECTED FROM THE BELLCRANK. THE CONNECTING NUT AND BOLT WAS NOT LOCATED. ANOTHER BOLT, ALTHOUGH ATTACHED TO THE BELLCRANK, DID NOT CONTAIN A CORRESPONDING NUT. BOTH WINGS WERE REINSTALLED ON THE AIRPLANE ABOUT 22 MONTHS BEFORE THE ACCIDENT. THE LAST ANNUAL INSPECTION WAS PERFORMED ABOUT 3 MONTHS BEFORE THE ACCIDENT. THE SAME MECHANIC PERFORMED THE REINSTALLATION OF BOTH WINGS AND THE LAST ANNUAL INSPECTION.

Quoted verbatim from the NTSB record.