SDR CALA2012041800275

Service difficulty report · Skin · Boeing 737924ER

Difficulty date: April 18, 2012
Submitted: April 18, 2012
Operation: Air carrier
Aircraft: N37413
Make and model: Boeing 737924ER
Aircraft serial: 31664
Aircraft time: 13,784 hours, 4,549 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Part number: 182A40012
Condition: Cracked
Location: Rt Horiz Stab
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

SUPPORT TASK - RT HORIZONTAL STABILIZER LOWER SKIN SHOWS CRACK INDICATION USING C-SCAN AT APPROXIMATE STA 129.50 I/B OF DRAIN HOLE INSTALLED REPAIR AT STA 129.50 IAW SRM 55-10-01 REPAIR 11 INSP THRESHOLD AT 56000 FLT CYC'S AFTER REPAIR INSTALLATION THEN REPEAT INSP'S EVERY 9000 FLT CYC'S PER STEP 5A TABLE 204 PAGE 216. INSPECT REPAIR AFTER 56000 FLT CYC BUT BEFORE 57000 FLT CYC (INSP THRESHOLD) AND REPEAT INSPECTION AT EVERY 9000 FLT CYC INTERVALS. REF SRM 55-10-01 PG 216.