Service difficulty report · Seat Track · Bombdr DHC8402

Difficulty date
February 23, 2013
Submitted
March 6, 2013
Operation
Air carrier
Aircraft
N434MK
Make and model
Bombdr DHC8402
Aircraft serial
4227
Aircraft time
10,385 hours, 11,359 cycles
Part
Seat Track
Condition
Corroded
Location
Cabin
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

SEAT TRACK NR 9 HAS AREAS OF CORROSION. REMOVED CORROSION, MECHANICALLY MEASURED MINIMUM REMAINING FLANGE THICKNESS TO BE .056", MINIMUM ALLOWABLE THICKNESS IS .060", FOUND TO BE OUT OF LIMITS IAW SRM 53-20-49-02-02, FIG 2. PARTIALLY REMOVED SEAT TRACK IAW SRM 51-42-05-02-01, REV 12. REMOVED SEAT TRACK IAW SRM 51-42-05-02-01, REV 12. MATCH DRILLED REPLACEMENT NR 9 SEAT TRACK IAW SRM REV 12 51-40-07-02-01. OK TO INSTALL REPLACEMENT NR 9 SEAT TRACK. INSTALLED FASTENERS IN NR 9 SEAT TRACK FROM X 654.5 TO X683.45 IAW SRM REV 12 51-42-05-02-01, 51-40-15-02-01 AND 51-41-05-00-01. INSTALLED RIVETS ON SEAT TRACK NR 9 TO VERTICAL WEB FROM FRAME 714 TO FRAME 801 IAW SRM 51-42-05-02-01, REV 12. INSTALLED REMAINING RIVETS IAW SRM 51-42-05-02-01, REV 12. INSTALLED HI LITES IAW SRM 51-40-15-02-01, REV 12. COMPLETED INSTALLATION OF SEAT TRACK 9 IAW SRM 51-42-05-02-01, 51-40-15-02-01 AND 51-41-05-02-01, REV 12. PERFORMED BONDING CHECK OF METALLIC COMPONENTS IAW SRM 51-80-00-02-01 REV 12. BONDING CHECK SATISFACTORY AT THIS TIME (1.5M). APPLIED PRIMER AND TOPCOAT TO RIVETS, FASTENERS AND TRACK NR 9 IAW SRM 51-25-10-02 AND SRM 51-25-05-01, REV 12.