SDR AALA202205027354

Service difficulty report · Skin · Boeing 737

Difficulty date: April 13, 2022
Submitted: May 2, 2022
Operation: Air carrier
Aircraft: N858NN
Make and model: Boeing 737
Aircraft serial: 30904
Aircraft time: 34,447 hours, 14,184 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Condition: Cracked
Location: Zone 300 - Stabs
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIRCRAFT WAS GROUNDED: RIGHT HORIZONTAL STABILIZER LOWER SKIN HAS VISUAL INDICATION OF CRACK AT STABILIZER STATION 138.70 AT 9 INCHES FROM AFT SPAR. INSTALLED DOUBLER PER SRM 55-10-01-2R REPAIR 11 REQUIRES DETAILED VISUAL INSPECTION OF EXTERNAL DOUBLER AND EDDIE CURRENT INSPECTION OF SKIN AT 56,000 TOTAL FLIGHT CYCLES AND AT SUBSEQUENT 9,000 CYCLE INTERVALS PER SRM 55-10-01-2R-11. **SUPPLEMENTAL REPORT FOR AALA202204147354: INSTALLED DOUBLER REPAIR. (AALA202204127592)** (CLOSED)