# SDR CALA2020050900940

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2020
- Submitted: May 9, 2020
- Operation: Air carrier
- Aircraft: [N78285](https://openairdocs.org/aircraft/N78285), registered now
- Make and model: Boeing 737824
- Aircraft serial: 33452
- Aircraft time: 53,129 hours, 18,658 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 182A5301
- Condition: Cracked
- Location: Rt Horiz Stab
- 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/CALA2020050900940

## Discrepancy

EA 5510-01843 R/H HORRZANTAL STA RIB STA 92.70 HAS CRACK AT NO.2 VERTICAL STIFFENER TRANSATION RADIUS AND CRACKED VERTICAL WEB. REF BY PEMCO NR 2759N577. REPAIRED RH HORIZ STAB STIFFENER #2 IAW SRM 55-10-09RPR4 FIG202 AND REPAIRED LOWER SKIN IAW B737-800 SRM 55-10-01 RPR11 FIG204. INSP REQUIREMENTS PER TABLE 204 WITH INSP THRESHOLD @56000 TOTAL DIP 55-DIP PLEASE INCLUDE THE FOLLOWING INFORMATION - REFERENCE IS "TABLE 204" AND INCLUDE THE REPEAT INSPECTIONS REQUIRED FOR THE LIMITATIONS IN THE CORRECTIVE ACTION. REPAIRED RH HORIZ STAB STIFFENER #2 IAW SRM 55-10-09RPR4 FIG202 AND REPAIRED LOWER SKIN IAW B737-800 SRM 55-10-01 RPR11 FIG204. INSP REQUIREMENTS PER TABLE 204 WITH INSP THRESHOLD @56000 TOTAL CYCLES WITH REPEAT INSPECTION OF EXT DVI AT 9000FC AND LFEC AT 90000 CYCLES PER 737 NDT PART 6 51-00-26

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