# SDR SCNA20250506166

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2025
- Submitted: May 6, 2025
- Operation: Air carrier
- Aircraft: [N5209A](https://openairdocs.org/aircraft/N5209A), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 32579
- Aircraft time: 62,072 hours, 39,779 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Bushing
- Condition: Worn
- Location: Zone 300
- 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/SCNA20250506166

## Discrepancy

WOLEFT HAND HORIZONTAL STABILIZER, THE AFT UPPER BUSHING HAS PLATING WORN. (120-117) - RESOLUTION: REMOVE AND REPLACE BUSHINGS.  REMOVED AFT UPPER MOUNT BUSHINGS AT RH HORIZONTAL STABILIZER IAW BOEING SERVICE BULLETIN 737-55-1074 FIG. 4 PG. 1 TO PG 3 REV 2 JULY 21, 2017. FIGURE 7, SHEET 1 THRU 3. PERMANENT REPAIR PART 3, STEP 5.  INSPECTED THE JOINT, IAW EAR #08 RESPONSE STEP 2, PER SB 737-55-1074 REV 2: JULY 21, 2017. PERMANENT REPAIR PART 3, STEP 10. SCRATCHES NOTED.  ACCOMPLISHED FILLING THE REPORT FORM FOR AFFECTED JOINT AS PER 737-NG-FTD-55-13002, JOINT DIMENSION REPORT IAW EAR #08 RESPONSE STEP 2.  PERFORMED DAMAGE REMOVAL OF CORROSION IN THE BORE AREA ONTO RHS HOR. STABILIZER REAR SPAR UPPER LUG (BORE) UP TO NOMINAL SIZE DIAM: 1.951" IAW EAR ITEM #08 DATED: 01/28/25 ENG. RESPONSE STEP 6 THRU STEP 8 AND BOEING SB 737-55-1074 FIG. 9.

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