Service difficulty report · Skin · Boeing 73776N

Difficulty date
July 13, 2021
Submitted
August 10, 2021
Operation
Air carrier
Aircraft
N7723E
Make and model
Boeing 73776N
Aircraft serial
32670
Aircraft time
48,099 hours, 24,239 cycles
Part
Skin
Condition
Dented
Location
Bs 500c S5r
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

FUSELAGE EXTERNAL SKIN HAS A DENT AT BS 500C+9'; 2.3' ABOVE STR 5R. ; / [01] REMOVED DECORATIVE EXTERIOR PAINT AT DISCREPANCY AREA TO FOM PER AMM 51-21-11; [02] EVALUATED DENT AT DISCREPANCY AREA L= 1.5' W=1.3' FOUND TO BE OUT OF LIMITS DUE TO BLEND OUT (AREA L=1.2 W=0.9') AT DENT AREA PER SRM 53-00-01-1A-1 FIG 103 DETAIL G.; [03] PERFORMED EXTERNAL GVI AT DISCREPANCY AREA PER SRM 51-00-06. NO ADDITIONAL DAMAGE NOTED; [04] PERFORMED EXTERNAL GVI AT DISCREPANCY AREA PER SRM 51-00-06. NO ADDITIONAL DAMAGE NOTED; [05] VERIFIED OUT OF LIMITS; [06] ET INSPECTED BLEND IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23; NO CRACKS NOTED. <BR>CAL ID IS000450 <BR>UT INSPECTED BLEND IAW 737 NDTM PART 4 51-00-00 PROCEDURE 2; LOWEST THICKNESS = 0.036' <BR>CAL ID ATS2031 E650; [07] VERIFY DAMAGE DIMENSION AT DENT L=1.5' W=1.3' Y=0.025' W/Y=52 AT BLEND OUT ORIGINAL THICKNESS 0.040' REMAINING 0.036' MAX LOSS 0.004' PER SRM 53-00-01-1A-1. PIT AND DENT GAUGE ID ATS2607 S/N F00387 DUE 04/2022; [08] VERIFIED VERIFY DAMAGE DIMENSION AT DENT L=1.5' W=1.3' Y=0.025' W/Y=52 AT BLEND OUT ORIGINAL THICKNESS 0.040' REMAINING 0.036' MAX LOSS 0.004' PER SRM 53-00-01-1A-1.; [09] APPLIED DECORATIVE EXTERIOR PAINT AT DISCREPANCY AREA PER SRM 51-21-99.; [10] VERIFIED DECORATIVE EXTERIOR PAINT AT DISCREPANCY AREA PER SRM 51-21-99.;; [12] AS PER EA 21-153-02055; THE DAMAGE IS ALLOWABLE FOR CONTINUED SERVICE WITH AN INSPECTION THRESHOLD DEFINED ON 21-153-02055-DTI.

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