# SDR 2021F00238

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2021
- Submitted: October 14, 2021
- Operation: General aviation
- Aircraft: XAAMN
- Make and model: Boeing 737-800
- Registry model: [Boeing 737-800](https://openairdocs.org/model/boeing-737-800) (OpenAirDocs)
- Aircraft serial: 39945
- Aircraft time: 27,958 hours, 10,321 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Acoustic Panel
- Condition: Damaged
- Location: Thrust Reverser
- 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/2021F00238

## Discrepancy

CRACK ON RH ENGINE OUTBD THRUST REVERSER INNER ACUSTIC PANEL, DURING TRANSIT CHECK, IT WAS DETECTED A CRACK ON RH ENGINE OUTBOARD THRUST REVERSER INNER ACOUSTIC PANEL. MAINTENANCE PERSONNEL PERFORMED A REVISION, DETECTING 2 CRACKS OF 0.750" AND 0.500" ON RH ENGINE 2 OUTBOARD THRUST REVERSER INNER ACOUSTIC PANEL TRAILING EDGE AT 2:00 HRS POSITION AND RIVET SHEARED ON RIGHT ENGINE EXHAUST DUCT AT 11:00 HRS POSITION, THE ACOUSTIC PANEL WAS REPAIRED IAW SRM 51-70-05, REPAIR 6 AND SRM 54-30-01, REPAIR 1; ULTRASONIC AND TAP TEST INSPECTIONS ON REWORKED AND SURROUNDINGS AREAS WERE PERFORMED IAW B737 NDTM PART 4, 51-00-02 AND PART 1, 51-05-01; REPAIRED AREAS WERE PAINTED IAW SRM 51-70-05, REPAIR 1, PARAGRAPH 4.0, REPAIR GENERAL; RIVET WAS REPLACED IAW SRM 51-40-02, PARAGRAPH 4.B, ALL CORRECT.

---
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.