Service difficulty report · Insert · Boeing 7377H4

Difficulty date
April 8, 2023
Submitted
May 18, 2023
Operation
Air carrier
Aircraft
N958WN
Make and model
Boeing 7377H4
Aircraft serial
36673
Aircraft time
38,993 hours, 23,664 cycles
Part
Insert
Condition
Damaged
Location
Zn 200 Fus Top
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

FWD PANEL 222DF HAS A RIPPED OUT INSERT ALONG THE O/B EDGE. (MARKED)<OUT OF ALLOWABLE LIMITS IAW SRM 53-00-50-1A-1 PARA 4.F. FOUND ADDITIONAL DAMAGE ON THE INBOARD EDGE. FABRICATED AND CLEANED 2E HONEYCOMB CORE PLUGS USING BMS 8-124; TYPE V; GRADE 9.0; CLASS 4 LOT# 1287137 IAW SRM 53-00-50-2R-6 PARA 3.F AND TABLE 201; BWG DWG #: 141A5810 SHEET: 749] INSTALLED CORE PLUGS USING BMS 5-28 TY19 LOT: AK2IP3152K USING VACUUM AND CAUL PLATES TO SUPPORT THE REPAIRS IAW SRM 53-00-50-2R-6 PARA 3.F;H.;[09] CORRECTION TO ACTION 8: USED VACUUM GAUGE ATS2798 DUE: 10/2023;[10] INSPECTED AND VERIFIED CORRECTIVE ACTION 9.<BR>.;[11] 5067<BR><BR>UPPER SURFACE PLIES CURED AND UNBAGGED ON FAULT TTG8Q00KBKR7<BR><BR>SANDED 2EA HONEYCOMB CORE PLUGS TO BE LEVEL WITH THE ADJACENT SURFACES IAW SRM 53-00-50-2R-6 PARA 3.J. <BR><BR>FABRICATED REPAIR PLIES FROM BMS 9-3 TY H2 CL7 STYLE 1581 LOT#1522395-2-1 IAW SRM 53-00-50-2R-6 PARA 3.K(1) INSTALLED LOWER SURFACE REPAIR PLIES USING BMS8-201 LOT#1522301-1; VACUUM BAGGED; CHECKED FOR LEAKS; LEAK CHECKED GOOD USING VACUUM GAUGE ATS2798 CAL DUE DATE 10/2023 AND SET FOR CURE USING HEAT LAMP AND THERMOMETER ATS2208 CAL DUE DATE 10/2023 IAW SRM 53-00-50-2R-6 PARA 3K(1)-L(1)-M(1).;[15] INSPECTED AND VERIFIED CORRECTIVE ACTION 14.;[16] CURED USING HEAT LAMP AND THERMOMETER ATS2208 CAL DUE DATE 10/2023; UNBAGGED AND LIGHTLY SANDED REPAIR IAW SRM 53-00-50-2R-6 PARA 3M(1).;[17] INSERTS WERE INSTALLED AND CURED ON FAULT TTG8Q00KBKR7\\

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