Service difficulty report · Sill · Boeing 757236

Difficulty date
September 21, 2013
Submitted
October 2, 2013
Operation
Air carrier
Aircraft
N979FD
Make and model
Boeing 757236
Aircraft serial
25592
Aircraft time
56,918 hours, 19,763 cycles
Part
Sill
Part number
143N832229
Condition
Corroded
Location
Zone 200
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

BS 740 -752, R2 DOOR LOWER SILL WEB FOUND CORRODED AT LOWER SURFACE, AROUND FASTENER HOLES. CORROSION REMOVED AS PER SRM 51-10-02 REV 109. MATERIAL REMOVED 0.012" FOUND EXCEED LIMIT AS PER SRM 53-30-15 ALLOWABLE DAMAGE 1 FIG. 101 REV. 109. DOOR LOWER SILL WEB REMOVED AND REPLACED AS PER SRM 51-40-02 REV. 109 AND DWG 143N8322 SH 1 REV. K WITH FABRICATED WEB. NEW DOOR LOWER SEAL WEB FABRICATED AS PER DWG 143N8322 SH 1 REV K. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.