Service difficulty report · Balance Weight · Boeing 7377H4
FAA SDR system
- Difficulty date
- April 25, 2020
- Submitted
- August 27, 2021
- Operation
- Air carrier
- Make and model
- Boeing 7377H4
- Aircraft serial
- 33831
- Aircraft time
- 55,520 hours, 32,985 cycles
- Part
- Balance Weight
- Condition
- Corroded
- Location
- Rudder
- 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*** AT VERTICAL STAB ON RUDDER COUNTER BALANCE WEIGHT. MARKED / REMOVED AND REPLACED RUDDER COUNTER BALANCE WEIGHT PER CMM 55-40-09 PG 301 & 302 STEP 2C(2) AND CMM 55-40-09 PG 704 & 705 STEPS 2C(3)&(4) VERIFIED TORQUE PER SOPM 20-50-18 TABLE 6