SDR UALA2011042501981

Service difficulty report · Elevator · Boeing 777222

Difficulty date: April 23, 2011
Submitted: May 2, 2011
Operation: Air carrier
Aircraft: N225UA
Make and model: Boeing 777222
Aircraft serial: 30554
Aircraft time: 38,108 hours, 4,649 cycles
Engine: Pwa PW40903
System (JASC): 2730 · Elevator Control System
Part: Elevator
Condition: Vibration
Stage of operation: NR
How discovered: O
Nature of condition: E
Precautionary procedure: O

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

What was found

PILOT REPORTS FUSELAGE SHUDDERS DURING CONTROL COLUMN CHECK WHEN YOKE IS PULLED BACK FULLY AND THEN RETURNED TO NEUTRAL POSITION. ACCOMPLISHED FIM TASK 27- 31 TASK 904, 'NOISE & VIBRATION DURING ON-GRD ELEVATOR CONTROL SURFACE MOVEMENT NO VIBRATION NOTED WHEN MOVED AT 'SLOW RATE' PER FIM. ALSO MT27-018R1 ADDRESSES THIS ISSUE. PERFORMED ELEV POS TEST REF MM, ALL INDICATIONS WITHIN LIMITS.