# SDR SWAA2022032481113

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2022
- Submitted: March 24, 2022
- Operation: Air carrier
- Aircraft: [N8307K](https://openairdocs.org/aircraft/N8307K), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36987
- Aircraft time: 32,756 hours, 14,736 cycles
- System (JASC): [5420 · Nacelle/Pylon Miscellaneous Structure](https://openairdocs.org/jasc/5420)
- Part: None
- Condition: Cracked
- Location: L/H Fuselage
- 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/SWAA2022032481113

## Discrepancy

EVIDENCE OF CRACK ON LEFT INBOARD FAN COWL LOWER FORWARD LATCH AT RIVET HOLE. HFEC VERIFIED; CRACK MEASURES .750 IN LENGTH AND IS MARKED. / [01] ACCOMPLISHED HFEC COUNTERSINK INSP AND SURFACE INSP PER NDT 53-30-00 PROC 3 AND 51-00-00 PROC. 23 CONFIRMED CRACK IS IN THE SKIN STARTS AT FASTENER HOLE AND EXTENDS .750';[02] CHEMICALLY REMOVED PAINT ON AREA IAW SRM 51-20-01. REMOVED FASTENER IAW SRM 51-40-02. VERIFIED CRACK PER HFEC 51-00-00 PROCEDURE 23 AND COUNTERSINK HFEC PROCEDURE . COWL IS TO BE REPLACED WITH SERIVICABLE COWL ON ROUTINE CARD #TTG8Q00AYMWC;[03] C/W INSPECTION

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