SDR DALA2025031001820

Service difficulty report · Cusp Web · Boeing 717200

Difficulty date: March 8, 2025
Submitted: March 10, 2025
Operation: Air carrier
Aircraft: N998AT
Make and model: Boeing 717200
Aircraft serial: 55142
Aircraft time: 58,258 hours, 41,894 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Cusp Web
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

CORROSION OUT OF LIMITS, IN REF TO NRC 0642: CORROSION ON RH CUSP WEB STA Y=660-665, ORIGINAL THICKNESS OF 0.020 IN AND MINIMUM REMAINING THICKNESS IS 0.010 IN, PER B717-200 SRM 53-00-55-1A-1 PROCEDURE 1 ALLOWABLE DAMAGE 1 PAR. 4. A. FIG 101. SUMMARY OF NRC 00831: CORROSION LEVEL 2. CORROSION ON CUSP WEB STA Y=660-665 WAS REPAIRED PER B717 SRM 53-00-55-2R PROCEDURE 4. (LP #084769)

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