# SDR SWAA2026042992805

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2026
- Submitted: April 29, 2026
- Operation: Air carrier
- Aircraft: [N8718Q](https://openairdocs.org/aircraft/N8718Q), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 42546
- Aircraft time: 19,351 hours, 9,064 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Heat Shield
- 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/SWAA2026042992805

## Discrepancy

CRACK MEASURING 14.5 INCHES LONG ON NR 2 AFT LOWER PYLON HEAT SHEILD LOCATED 28 INCHES FWD OF AFT EDGE. LT OF CRACKED STOPS .312 AWAY FROM NEAREST FASTENER; RIGHT SIDE OF CRACK STOPS .33 AWAY FROM NEAREST FASTENER.  COMPLIED WITH EA 26-154-01126 AND APPLIED SEALANT TO NR 2 PYLON CRACK.

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