# SDR SWAA2021081094292

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2021
- Submitted: August 10, 2021
- Operation: Air carrier
- Aircraft: [N7723E](https://openairdocs.org/aircraft/N7723E), registered now
- Make and model: Boeing 737-76N
- Registry model: [Boeing 737-76N](https://openairdocs.org/model/boeing-737-76n) (OpenAirDocs)
- Aircraft serial: 32670
- Aircraft time: 48,099 hours, 24,239 cycles
- System (JASC): [5754 · Leading Edge Devices](https://openairdocs.org/jasc/5754)
- Part: Skin
- Condition: Cracked
- Location: Rt Wing Slat
- 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/SWAA2021081094292

## Discrepancy

CRACK IN #5 SLAT LOWER SKIN NEAR ACTUATOR FITTING ATTACH FASTENER ; / [01] HFEC INSPECTED CRACK ON #5 SLAT LOWER SKIN IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23; AREA MARKED. EQUIP ID#: IS000450 S/N: N500D000M120071; [02] REMOVED HI LOCK AT #5 SLAT LOWER SKIN NEAR ACTUATOR FITTING ATTACH AND OVERSIZE HOLE TO 0.215 IAW SRM 51-40-02.; [03] HFEC REQUEST ON OPEN HOLE; SLAT LOWER SKIN AND ACTUATOR FITTING FOR FREE CRACK CONDITION.; [04] ET INSPECTED HOLE IAW 737 NDTM PART 6 51-00-00 PROCEDURE 16; CRACK STILL NOTED IN SKIN.18] FABRICATED REPAIR PARTS: DOUBLER; MADE FROM CLAD 7075-T6 #0.071' LOT#1459410-1 AND FILLER MADE FROM CLAD 7075-T6 0.063'; LOT#1418646-2. APPLIED CHEMICAL CONVERSION COATING. IAW SRM 51-20-01-0G-0 AND SRM 57-42-01-2R-8 STEP 4E THRU 4J. OK TO PRIMER.; [19] VERIFIED FABRICATION OF REPAIR PARTS: DOUBLER & FILLER FROM CLAD 7075-T6 0.071' LOT# 1459410-1 AND FROM CLAD 7075-T6 0.063' LOT# 1418646-2. VERIFIED APPLICATION OF CHEMICAL CONVERSION COATING. ALL IAW SRM 51-20-01-0G-0 & SRM 57-42-01-2R-8 STEP 4. E.-4. J.<BR>OK TO APPLY PRIMER GIVEN.;

---
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.