Service difficulty report · Rib · Boeing 7377H4

Difficulty date
May 12, 2021
Submitted
June 17, 2021
Operation
Air carrier
Aircraft
N440LV
Make and model
Boeing 7377H4
Aircraft serial
29835
Aircraft time
60,603 hours, 35,703 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
Stage of operation
IN
How discovered
9
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

CRACK INSPAR RIB 120.30 AT 38IN FRONT SPAR AT RT HORIZONTAL STABILIZER ; 2021-215414 / INSPECTED OK HAND LAYOUT ON REPAIR AREA OF INSPAR RIB 120.30 IAW B737-700 SRM 55-10-09-2R-4 FIGURE 202SHEET 1 TOOL USED DIGITAL CALIPER P/N 700-113-10 S/N 0019298 DUE DATE 01-APR -22;PERFORM HAND LAYOUT ON REPAIR AREA OF INSPAR RIB 120.30 IAW B737-700 SRM 55-10-09-2R-4 FIGURE 202SHEET 1 TOOL USED DIGITAL CALIPER P/N 700-113-10 S/N 0019298 DUE DATE 01-APR -22;PERFORMED PERMANENT REPAIR ON INSPAR RIB 120.30 OF RT HORIZONTAL STABILIZER IAW SRM 55-10-09-2R-4 REPAIR 4;TOOL USED CALIPER P/N: 700-113-10; S/N: 0019289; DUE DATE: 25- MAR-22;UPDATED DUE DATE DIGITAL CALIPER.;TOOL USED P/N: NORTEC 500D ; S/N:N500X11290U021704; CAL DUE DATE: 08-OCT-21

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