SDR CKSA98051

Service difficulty report · Rib · Boeing 747146

Difficulty date: February 24, 1998
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N703CK
Make and model: Boeing 747146
Aircraft serial: 19727
System (JASC): 5712 · Wing, Rib/Bulkhead
Part: Rib
Condition: Corroded
Location: Ws 1010
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 CPCP INSPECTION FOUND LEVEL 2 CORROSION. CORROSION ON RT WING RIB STA 1010 OVER SLAT CAVITY ON RT SIDE OF RIB AND FWD TOP OF RIB. REMOVED CORROSION IAW SRM 51-10-01. CHECKED RIB THICKNESS FOUND MINIMUM NOMINAL .035 MAX NOMINAL THICKNESS .070 OUT OF LIMITS IAW SRM 57-20-01. REPAIRED IAW AIA/E/2742 SKETCH. CORROSION TASK CARD NUMBER C57-510-01 PART 2 OF 4. NON-ROUTINE TASK CARD NUMBER 12784.