# SDR UPS06445907

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 2005
- Submitted: January 4, 2006
- Operation: Air carrier
- Aircraft: N682UP
- Make and model: Boeing 747121
- Aircraft serial: 20349
- Aircraft time: 103,615 hours, 26,170 cycles
- Engine: Pwa JT9D7A
- System (JASC): [7120 · Engine Mount Section](https://openairdocs.org/jasc/7120)
- Part: Thrust Link
- Part number: 65B403604
- Condition: Cracked
- Location: Nr 4 Engine
- 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/UPS06445907

## Discrepancy

AD CRACK INDICATIONS FOUND AT NR 4 ENG MOUNT THRUST LINK THE INDICATIONS LOCATED AT FWD AND AFT LUG BORE WHICH WERE EXCEEDED THE LIMITS. THRUST LINK REPLACED.  REF MM 71-21-03.

---
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.
