Air Trading Corporation | Lockheed Aircraft Corporation Airworthiness Directives

All Howard Model 500 Series and Lockheed Model PV-1 Series Airplanes

Unsafe Condition: Cracked elevator torque tube collars, P/N 5-408380-1, in the radius could lead to failure of the elevator control system.

Why matched: All Howard Model 500 Series and Lockheed Model PV-1 Series Airplanes

Airworthiness Directives; Grumman Models TBM and TBF Series Aircraft

Unsafe Condition: The unsafe condition could occur if the elevator control system components, including the bellcrank, pushrod, and bellcrank arm, become disconnected or fail, resulting in loss of elevator control.

Why matched: Airworthiness Directives; Grumman Models TBM and TBF Series Aircraft

LOCKHEED Models L-18 and PV-1 Airplanes

Unsafe Condition: Runaway operation of the electrically operated trim tab actuators

Why matched: LOCKHEED Models L-18 and PV-1 Airplanes

LOCKHEED Model PV-1, B-34, and 18 Series Aircraft

Unsafe Condition: Cracks in the elevator control mast assembly castings P/N 11467 or 56045 in the attach bolt lugs, which could lead to failure of the elevator control system.

Why matched: LOCKHEED Model PV-1, B-34, and 18 Series Aircraft

LOCKHEED Models PV-1 and B-34

Unsafe Condition: Main landing gear lower drag strut P/N 112004 is understrength due to lack of specified heat treatment, resulting in potential failure.

Why matched: LOCKHEED Models PV-1 and B-34

LOCKHEED Models PV-1 and B-34 Aircraft

Unsafe Condition: Failure of the main landing gear drag strut attach plates (P/N 112900 or P/N 12665) can cause main landing gear collapse.

Why matched: LOCKHEED Models PV-1 and B-34 Aircraft

LOCKHEED Models 18 Series and PV-1 Aircraft

Unsafe Condition: Cracks occurring at the base of the rudder cable attachment tangs on rudder control quadrant Lockheed P/N 53026 due to excessive clearance between tangs and rudder cable attach fittings, causing be...

Why matched: LOCKHEED Models 18 Series and PV-1 Aircraft