# SDR DHL2003742563

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 23, 2003
- Submitted: January 9, 2004
- Operation: Air carrier
- Aircraft: N742DH
- Make and model: Boeing 727225
- Aircraft serial: 21290
- Aircraft time: 57,477 hours, 36,433 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2003742563

## Discrepancy

DURING C-CHECK,  CORROSION ON BS 344 FLOORBEAM UPPER CHORD AROUND NUT PLATES ATTACHING 9G BULKHEAD TO FLOORBEAM, LBL 50 RBL 50,WL 208,AS VIEWED FROM NWW DOGHOUSE AREA.  REMOVED 9G BULKHEAD,AND SHEAR WEB FOR ACCESS, IAW B727 SRM 51-30-2 AND MM 53-20-11.  REMOVED DAMAGED UPPER CHORD BS 344 AND FABED NEW FROM BAC1505-29222 PO 3348139 DIM 11.75 FT LONG IAW 727 SRM 51-20-1 & 53-10-2 FIG 7.  NEW CHORD TREATED AND PRIMED IAW 727 SRM 51-10-2 AND INSTALLED IAW SRM 51-30-2 REINSTALLED SHEAR WEB, FLOORBOARDS AND 9G BULKHEAD IAW 727 SRM 51-30-2 & MM 53-20-11.

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