# SDR UIEA01058

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2001
- Submitted: June 18, 2001
- Operation: Air carrier
- Aircraft: [N528MC](https://openairdocs.org/aircraft/N528MC), registered now
- Make and model: Boeing 747-2D7B
- Registry model: [Boeing 747-2D7B](https://openairdocs.org/model/boeing-747-2d7b) (OpenAirDocs)
- Aircraft serial: 22472
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Fitting
- Part number: 65B15034U19
- Condition: Cracked
- Location: Fuselage
- Part time: 65,332 hours
- 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/UIEA01058

## Discrepancy

DURING HFEC INSPECTION PER SB 53A2390R1, FOUND BS 1480 L/S SPLICE PLATE FITTING HOLES NR 9 AND 10 WITH CRACK INDICATIONS.  REMOVED LONGERON EXTENSION STRAP.  REAMED HOLES TO REMOVE CRACKS.  CONFIRMED NO CRACKS.  FABRICATED BUSHINGS AND INSTALLED PER STANDARD PRACTICES IAW 747-53A2390R1 TO NOMINAL SIZE OF .5625 INCH DIAMETER.  REINSTALLED LONGERON EXTENSION STRAP.  REPEAT INSPECTION INTERVAL REDUCED BY 6000 CYCLES TO A THRESHOLD OF 12000 INITIAL AND 3500 REPETITIVE THEREAFTER.  (M)

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