# SDR UPS02837770

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2002
- Submitted: March 6, 2002
- Operation: Air carrier
- Aircraft: N707UP
- Make and model: Doug DC-8-71F
- Registry model: [Doug DC-8-71F](https://openairdocs.org/model/douglas-dc-8-71f) (OpenAirDocs)
- Aircraft serial: 45907
- Aircraft time: 74,693 hours, 48,764 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron
- Part number: S25972423
- Condition: Cracked
- 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/UPS02837770

## Discrepancy

INSPECTION TYPE:C LOWER FUSELAGE SKIN BULGING AT L36, STA 380 TO 400.  REMOVED SPLICE FITTING AT L36, STA 380 TO 400.  REMOVED CORROSION ON L36 PER SRM 51-1-8.  NO CORROSION FOUND ON SKIN.  NDT REVEALED CRACK ON L36 FROM STA 390-394.  FABRICATED AND INSTALLED REPLACEMENT LONGERON SECTION PER SRM 53-4-1 FIG 28.  INSTALLED NEW SPLICE FITTING.

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