Service difficulty report · Skin · Boeing 747422

Difficulty date
November 13, 2014
Submitted
November 24, 2014
Operation
Air carrier
Aircraft
N177UA
Make and model
Boeing 747422
Aircraft serial
24384
Aircraft time
99,343 hours, 11,926 cycles
Engine
Pwa PW4056
Part
Skin
Condition
Damaged
Location
Fuselage
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

EXTERNAL CATEGORY B EXTERNAL SKIN DOUBLER INSTALLED STATION 560 - 580 STRINGER 44L - 45L IAW SRM 53-00-01 REV 91. DOUBLER REQUIRES LFEC INSPECTION WITHIN 1500 FLIGHT CYCLES & HFEC WITHIN 6000 FLIGHT CYCLES IAW SRM 53-00-01 REPAIR 1 PAGE 213. CF 9204 IS A PERMANENT REPAIR PROVIDED THE RE-INSPECTIONS REQUIRED IAW PART 2 OF ECRA 5330-0 4942 ARE ACCOMPLISHED, OVER ON MF4727. REMOVED HARD TIME LIMITS FROM THIS CF.