# SDR SWAA2021081096846

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 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): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Condition: Corroded
- Location: Bs 311 S23l
- 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/SWAA2021081096846

## Discrepancy

CORROSION ON STRINGER 23 LEFT AT B.S. 311; W.L. 167. ; / [02] REMOVED DAMAGE ON STRIGER 23 LEFT AT BS 311; WL 167; AREA 1' X 1' IAW SRM 53-10-15-1A-1 ALLOWABLE DAMAGE 1.[04] REJECTED ITEM 2: 2 EA FASTENERS REQUIRE REPLACEMENT FOR HEAD DAMAGE. (FORWARD OF REMOVED FASTENER AND INBOARD OF REMOVED FASTENER). NEW FAULT RAISED.; [05] REMOVED CORROSION ON STRIGER 23 LEFT AT BS 311; WL 167; AREA 1' X 2' IAW SRM 53-10-15-1A-1 ALLOWABLE DAMAGE 1.<BR><BR>REMOVED 2 EA FASTENERS ; FORWARD OF REMOVED FASTENER AND INBOARD OF REMOVED FASTENER IAW SRM 51-40-02-0G-0; [06] VERIFIED REMOVAL OF CORROSION ON STRIGER 23 LEFT AT BS 311; WL 167; AREA 1' X 2' IAW SRM 53-10-15-1A-1 ALLOWABLE DAMAGE 1. REJECTION ITEM 1 CORRECTED ON TTG8Q005VSF2.<BR><BR>VERIFIED REMOVED 2 EA FASTENERS ; FORWARD OF REMOVED FASTENER AND INBOARD OF REMOVED FASTENER IAW SRM 51-40-02-0G-0 FOR REJECTED ITEM 2; [07] ACCOMPLISHED 10X VISUAL INSPECTION NO DEFECTS NOTED; FOUND TO BE OUT OF LIMITS PER SRM 53-10 15-1A-1 FIGURE 108 DETAIL E; FOUND TO BE OUT OF LIMITS PER SRM 53-10 15-1A-1 FIGURE 108 DETAIL E RRECTION STEP 10; [14] VERIFIED STEP 13; [15] ALL STEPS COMPLETED FOR EA 21-153-02064 IS COMPLETE; [16] VERIFIED ALL STEPS COMPLETED FOR EA 21-153-02064 IS COMPLETE;

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