# SDR UPS99229621

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N921UP](https://openairdocs.org/aircraft/N921UP), registered now
- Make and model: Boeing 727180C
- Aircraft serial: 19874
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Damaged
- Location: Bs 783.95
- 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/UPS99229621

## Discrepancy

INSPECTION TYPE:C, MECHANICAL DAMAGE FOUND ON SECOND FASTENER HOLE ABOVE FLOOR AT BS 783.95 LT.  AFTER CLEAN UP, HOLE WAS OUTSIDE LIMITS PER EO B727-5310- 5474 PAGE 9.  DAMAGED HOLE TAKEN TO 0.370 AND FREEZE PLUG INSTALLED IAW SRM 51-10- 7 REF SMRO EO 99-12-002 AND UPS EO B727-5310-11383-A.  REPAIR TO FRAME RESULTING FROM OVERSIZING OF HOLE, CARRIED OUT IAW EO B727-5310-5474 APPX C.

---
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.