# SDR DHL2001740C25

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 9, 2001
- Submitted: February 1, 2001
- Operation: Air carrier
- Aircraft: N740DH
- Make and model: Boeing 727-2Q9
- Registry model: [Boeing 727-2Q9](https://openairdocs.org/model/boeing-727-2q9) (OpenAirDocs)
- Aircraft serial: 21930
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Cracked
- Location: Aft 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/DHL2001740C25

## Discrepancy

AFT AIRSTAIRS CUTOUT EXTERNAL SKIN HAS A CRACK AT FWD CORNER.  STOP DRILL CRACK AT AFT AIRSTAIRS CUTOUT EXTERNAL SKIN AS PER SRM 51-10-1.  REMOVED FASTENERS FOR INSTALL DOUBLER AS PER SRM 51-30-2.  INSP IAW B727NDT MANUAL PART 6-51-00-00 FIG 4, FOUND NO CRACKS BEYOND STOP HOLE.  INSTALLED DOUBLER MATERIAL 2024T3, .063 7 X 3 INCH LOT N 507B71966, PO 8315343 AT AFT AIRSTAIRS CUTOUT EXTERNAL SKIN AS PER SRM 51-10-2.  APPLIED ALODINE AND PRIME 51-10-2.

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