SDR SWIA202054906

Service difficulty report · Stringer · Cndair CL6002C10

Difficulty date: November 16, 2020
Submitted: January 4, 2021
Operation: Air carrier
Aircraft: N787SK
Make and model: Cndair CL6002C10
Aircraft serial: 10288
Aircraft time: 30,362 hours, 18,803 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Condition: Corroded
Location: Zone 100
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

CORROSION ON BACK-UP SILL AT STGR 21L FROM FS 310.00 TO FS 333.00. C-CHECK RO 12/28/2020. BACK-UP SILL AT STRG 21L BETWEEN FS 310 & FS 333 WAS CORRODED AND OUT OF LIMITS. REPLACED WITH NEW BACK-UP SILL PN: SH670-31822-1, IAW DWG, CRJ700 SRM. COMPLIED WITH SKY CARD.