# SDR CKSA98753

- 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): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 2240
- 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/CKSA98753

## Discrepancy

LOCATED AT ZONE 250 MID CABIN, BS 2240, FLOORBEAM HAS AREA OF CORROSION FROM LBL62 TO LBL 82.  REMOVED CORROSION IAW SRM 51-10-01, FOUND TO BE OUT OF LIMITS IAW SRM 53-10-01.  REPAIRED FLOORBEAM IAW SRM 51-40-04 FIG 1, TREATED IAW SRM 53-10-02.  FOUND DURING SCHEDULED C-CHECK AND CPCP TASK CARD ACCOMPLISHMENT AT HAECO MAINTENANCE/REPAIR FACILITY, IN HONG KONG (VHKG). C-CHECK WORK CARD NR 7CI2018, NON ROUTINE TASK CARD NR JF55230.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.