# SDR CKSA98757

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N707CK](https://openairdocs.org/aircraft/N707CK), registered now
- Make and model: Boeing 747269B
- Aircraft serial: 21541
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron
- Condition: Bulged
- Location: Bs 1241
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CKSA98757

## Discrepancy

LT WLG W/W STA 1241 BULKHEAD UPPER AREA FOUND BULGE UP AT STA 1241 TO STA 1250, LBL 60 TO LBL 70.  REPLACED RIVETS, BOLTS AND COLLARS AT AFFECTED AREA IAW SRM 51-10-01.  CORROSION REMOVAL IAW SRM 57-10-01, PRIMED AND TREATED IAW SRM 51-10-02, MM 51-20-11 AND 53-15-00.  FOUND DURING SCHEDULED C-CHECK AND CPCP TASK CARD ACCOMPLISHMENT AT HAECO MAINTENANCE/REPAIR FACILITY, IN HONG KONG (VHKG).  CPCP TASK CARD NR C53-100-01-7-10, NON ROUTINE TASK CARD JF56329.

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