SDR TSAA2024112600017

Service difficulty report · Spar · Boeing 737330

Difficulty date: November 23, 2024
Submitted: November 27, 2024
Operation: Air carrier
Aircraft: N301KH
Make and model: Boeing 737330
Aircraft serial: 27904
Aircraft time: 52,862 hours, 61,126 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
Part: Spar
Condition: Corroded
Location: Zone 300
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

CORROSION (2.0" X 0.5") AT RH SIDE HORIZONTAL STABILIZER REAR SPAR UPPER CHORD AT STA 116. CORROSION REMOVED LEVEL 1 AT HOR1 STAB REAR SPAR UPPER CHORD STAB STA116 FROM PN 65-50581-526 ORIGINAL THICKNESS 2.320" REMOVED 0.050" AND REMAINING THICKNESS IS 2.270" AND IS WITHIN LIMITS PER SRM DAMAGE 1 55-10-10 ALLOWABLE R134, AREA CLEAN & PROTECTIVE I.A.W B737-300 SRM 51-10-02 P12-15, 51-20-01 P3-7 (REV 134)