SDR NACA2025110100005

Service difficulty report · Case · Boeing 7673BG

Difficulty date: November 1, 2025
Submitted: November 21, 2025
Operation: Air carrier
Aircraft: N566NC
Make and model: Boeing 7673BG
Aircraft serial: 30566
Aircraft time: 78,378 hours, 20,250 cycles
Engine: Pwa PW4060
System (JASC): 7220 · Turbine Engine Air Inlet Section
Part: Case
Condition: Damaged
Location: Nr 1 Eng Fan
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

NUMBER 1 ENG. FAN CASE HAS A GOUGE ON THE V-GROOVE AT 3 O'CLOCK POSITION. REMOVED DAMAGE ON NR 1 ENG FAN CASE V-GROOVE AT 3 O'CLOCK POSITION WAS FOUND WITHIN LIMITS IAW AMM 72-34-07 STEP 2. E, TABLE 801. REMOVED 0.090 DEPTH, MAXIMUM ALLOWED 0.125".

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