Service difficulty report · Stringer · Cndair CL6002C10

Difficulty date
March 22, 2025
Submitted
April 10, 2025
Operation
Air carrier
Aircraft
N379CA
Make and model
Cndair CL6002C10
Aircraft serial
10102
Aircraft time
38,971 hours, 29,926 cycles
Part
Stringer
Part number
SH670316321
Condition
Corroded
Location
Zone 100
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

"STGR19R IS CORRODED BETWEEN FS280 AND FS295. BLENDED CORROSION AT STGR19R BETWEEN FS280 AND FS295 IAW CRJ700 SRM 51-21-06-001-001-A01. HFEC PERFORMED ON REWORKED AREAS OF STGR 19R IAW CRJ 700 NDTM PT 1 51-20-006-250-A01 NO INDICATIONS NOTED AT THIS TIME. PERFORMED UT THICKNESS ON BLENDED AREAS ON STGR 19R BETWEEN FS 280 AND FS 295 IAW CRJ 700 NDTM PT 1 51-20-004-270-A01. FOUND LOWEST REMAINING THICKNESS TO BE .047"" OR GREATER. UPON FURTHER INVESTIGATION FOUND STGR19R BETWEEN FS280 AND FS295 TO BE OUT OF LIMITS ORIGINAL THICKNESS .063'' MATERIAL REMOVED .016'' REMAINING THICKNESS .047'' IAW CRJ700 SRM 53-21-03-101-002-A01. UPON FURTHER INVESTIGATION FOUND CORROSION IN THE WEB OF THE STRINGER AND CORROSION BETWEEN FS295.00 AND FS310. REMOVED STR19R BETWEEN FS280.00 AND FS333.00 IAW CRJ900 SRM 51-42-06-001-001-A01. LOCATED AND INSTALLED STGR19R PN: SH670-31632-1 AT FS280-FS310 IAW CRJ700 SRM 51-40-11-001-001-A01, SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01."