# SDR 2006UALA02120

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 1, 2006
- Submitted: November 28, 2006
- Operation: Air carrier
- Aircraft: N180UA
- Make and model: Boeing 747422
- Aircraft serial: 25224
- Aircraft time: 65,759 hours, 8,119 cycles
- Engine: Pwa PW4056
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Stringer
- Part number: 65B076531043
- Part serial: NA
- Condition: Damaged
- Location: Bs 480 Str 6r
- Part time: 65,759 hours, 8,119 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2006UALA02120

## Discrepancy

BS 480 STR 6R IS DAMAGED.  DURING ACCOMPLISHMENT OF COA 848861 FOUND EXISTING SKIN REPAIR DOUBLER.  REMOVAL & REPLACEMENT OF DOUBLER REQUIRED TO PERFORM NDT INSPECTION OF AREA BS 480 STR 6R.  INSTALLED SKIN LAP REPAIR REF SRM 53-00-01 FIG 1.  SUSPECT PRESSURIZATION CYCLE FATIGUE DAMAGE.

---
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, except the copies of manufacturers’ service documents, which belong to their rights holders.