SDR CKSA98036

Service difficulty report · Frame · 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): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Cracked
Location: Bs 520
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 LFT SIDEWALL AREA, BS 520, FRAME CRACKED ALONG PREVIOUS DOUBLER REPAIR (REFERENCE: BETWEEN S31L AND S32L AREA). REMOVED PREVIOUS DOUBLER IAW B747 SRM 51-30-02. PERFORMED HFEC ON WEB PER BOEING SRM 53-10-04 END OF CRACK VERIFIED AND MARKED. VERIFIED CRACK CONTAINED AFTER STOP DRILL. REPAIRED IAW SRM 53-10-04. CORROSION TASK CARD NUMBER C53-110-01 PART 2 OF 5. NON-ROUTINE TASK CARD NUMBER 12511.