Service difficulty report · Structure · Boeing 747422

Difficulty date
August 26, 2015
Submitted
August 28, 2015
Operation
Air carrier
Aircraft
N127UA
Make and model
Boeing 747422
Aircraft serial
28813
Aircraft time
63,651 hours, 7,255 cycles
Engine
Pwa PW4056
Part
Structure
Condition
Cracked
Location
Vertical Stab
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 STAB REAR BULKHEAD AT LT T CHORD FOUND CRACKED APPROX RUB STATION 382.4. ECRA 5530-01732 REPAIR TO VERTICAL STAB LT REAR SPAR CORD HAS BEEN APPROVED AS STAGE 1 VIA FORM 8100-9 DATED 10 14 1. A NEW 8100-9 MUST BE RECEIVED PRIOR 10 14 15 THAT PROVIDES AT LEAST STAGE 2 APPROVAL FOR THIS REPAIR. IF A NEW 8100-9 IS NOT RECEIVED PRIOR TO 10 14 15 THE ACFT IS NO LONGER AIRWORTHY.