SDR UIEA2020111602403

Service difficulty report · Unknown · Boeing 767306

Difficulty date: November 13, 2020
Submitted: November 17, 2020
Operation: Air carrier
Aircraft: N1321A
Make and model: Boeing 767306
Aircraft serial: 27957
Aircraft time: 87,521 hours, 20,931 cycles
System (JASC): 5100 · Standard Practices/Structures
Part: Unknown
Condition: Noise
Stage of operation: CL
How discovered: O
Nature of condition: O
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

IMMEDIATELY AFTER TAKEOFF A DEAFENING ROAR MADE COMMUNICATIONS BETWEEN PILOTS AND BETWEEN PILOTS AND ATC ALMOST IMPOSSIBLE. UNABLE TO DETERMINE WHERE THE NOISE CAME FROM. ONCE THE CABIN DIFF PRESSURE REACHED 6.0 THE NOISE SLOWLY ABATED. GENERAL VISUAL OF AIRCRAFT NO DEFECTS NOTED. PRESSURIZED AIRCRAFT TO 4.0 DIFFERENTIAL. NO NOISES OR SQUEALS NOTED AT THIS TIME, IAW B767 AMM 21-31-00.