# SDR IPXA2026071690929

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 22, 2026
- Submitted: July 17, 2026
- Operation: Air carrier
- Aircraft: [N453UP](https://openairdocs.org/aircraft/N453UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25474
- Aircraft time: 40,247 hours, 23,271 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Web
- Part number: LJ75834
- Condition: Cracked
- Location: Zone 400
- 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/IPXA2026071690929

## Discrepancy

NR 2 ENGINE O/B TR UPPER FLANGE CRACKED WERE CASCADE IS REMOVED.  REMOVED DAMAGE IN TR Z420 #2 ENGINE O/B TR UPPER FLANGE.IAW.SRM 51-10-02-06 AND AMM 78-31-20-308-502-R00.  INSTALLED DOUBLER, FILLED THE REPAIR AREA AND APPLED SEALANT AROUND THE EDGES OF DOUBLER.IAW AMM 78-31-20-838-511-R00, AMM 78-31-20-398-512-R00 AND AMM 78-31-20-978-514-R00.

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