SDR CKSA97347

Service difficulty report · Spar · Boeing 747269B

Difficulty date
July 11, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N708CK
Make and model
Boeing 747269B
Aircraft serial
21543
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Corroded
Location
Ws 1390
Stage of operation
IN
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

DURING C1-12 CHECK INSPECTION FOUND LEVEL 2 CORROSION: EXFOLIATION CORROSION ON FRONT SPAR LWR CHORD AT WS 1390. REPAIRED LOWER FWD CHORD IAW AIA/E/2578 DWG. REPAIRED LOWER FWD SKIN IAW SRM 57-30-03 FIG 9, (7075-T6). C-CHECK WORK CARD NUMBER 7CI6112. NON-ROUTINE TASK CARD NUMBER 107390.