SDR UIEA2025012000094

Service difficulty report · Servo · Boeing 767306

Difficulty date: January 22, 2025
Submitted: January 27, 2025
Operation: Air carrier
Aircraft: N1399A
Make and model: Boeing 767306
Aircraft serial: 27959
Aircraft time: 101,694 hours, 21,099 cycles
System (JASC): 2700 · Flight Control System
Part: Servo
Part number: 15366005
Part serial: 284AB
Condition: Leaking
Location: Zone 300
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

VERTICAL STABILIZER, REAR SPAR, YAW DAMPER SERVOS ASSY, LEAKING EVIDENCE.(<P>YAW DAMPER SERVOS LEFT AND RIGHT, WERE REPLACED, TEST WERE PERFORMED AND HYD LEAKAGE CHECK WAS PERFORMED AND TORQUE WAS APPLIED IAW AMM 22-21-02-414-016 REV 143. OPS CHECK GOOD. </P>)