Service difficulty report · Beam · Boeing 7378H4

Difficulty date
January 13, 2022
Submitted
January 31, 2022
Operation
Air carrier
Aircraft
N8623F
Make and model
Boeing 7378H4
Aircraft serial
36731
Aircraft time
27,330 hours, 12,353 cycles
Part
Beam
Condition
Worn
Location
R/H Wing
Stage of operation
UK
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

A-061 R/H WING DEFLECTION CONTROL RIB UPPER TAB AND SUPPORT BEAM WORN AT 2 EA FASTENER HOLES ; / [01] EVALUATED WEAR - DEFLECTION CONTROL RIB UPPER TAB LOSS OF .051'; MAX ALLOWED .040' OUT OF LIMITS<BR>EVALUATED WEAR - SUPPORT BEAM ORIGINAL THICKNESS .090' LOSS OF .015' REMAINING .075' OUT OF LIMITS IAW SRM 57-51-02-1A-1 SECTION 4.D; FIGURE 108 DETAIL C AND FIGURE 108 DETAIL G.<BR>TOOL# AAR-27214 CAL DUE 08/31/22 AAR-31793 CAL DUE 11/04/22.; [02] REMOVED I/B AND O/B SERRATED PLATES IAW SRM 57-51-02-2R-4 SECTION 4.B; [03] CUT AND REMOVED DAMAGE FROM DEFLECTION CONTROL RIB UPPER TAB IAW SRM 57-51-02-2R-4 SECTION 4.E; [04] VERIFIED STEPS 1 THRU 3 C/W; [05] CUT AND REMOVED DAMAGE FROM SUPPORT BEAM IAW SRM 57-51-02-2R-1 SECTION 4.B; [06] VERIFIED STEP 5 C/W; [07] VERIFIED MATERIAL 7075-T6 .100' ATAG A39363 IAW SRM 57-51-02-2R-4 TABLE 201.; [08] VERIFIED STEP 7 C/W; [09] ACCOMPLISHED CRACK CHECK IAW B737 NDT P6 51-00-00 P23 TOOL 36303 DUE 13APR22 NO CRACKS NOTED; [10] RECEIVED -1 (O/B) DOUBLER FROM BACK SHOP W/O# 43073-6000-0001 IAW SRM 57-51-02-2R-4 TABLE 201.<BR>RECEIVED -1 (I/B) DOUBLER FROM BACK SHOP W/O# 43073-6000-0002 IAW SRM 57-51-02-2R-1 TABLE 201.; [11] LOCATED; DRILLED AND FABRICATED REPAIR PARTS IAW SRM 57-51-02-2R-1 SECTION 4.D-H AND SRM 57-51-02-2R-4 SECTION 4.I-M; [16] INSTALLED REPAIR PARTS I.A.W SRM 57-51-02-2R-4 AND SRM 57-51-02-2R-1;

More about the Boeing 737-8H4