SDR ASAA2021022434354

Service difficulty report · Skin · Boeing 737790

Difficulty date: February 24, 2021
Submitted: March 24, 2021
Operation: Air carrier
Aircraft: N613AS
Make and model: Boeing 737790
Aircraft serial: 30163
Aircraft time: 66,637 hours, 9,421 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Part number: 186A200014
Part serial: 000431
Condition: Cracked
Location: Horizontal 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

R/H HORIZONTAL LOWER SKIN IS CRACKED STA 138, 18 INCHES FWD OF REAR SPAR GROUNDED - YES. REPAIRED CRACK ON R/H HORIZ LOWER SKIN AT STA 138,18" FWD OF REAR SPAR IAW B737-700 SRM 55-10-01-2R-11 THIS IS A CAT B REPAIR WITH INSPECTION THRESHOLD OF 56,000 FLIGHT CYCLES & REPEATED AT 9,000 FLIGHT CYCLES