Service difficulty report · Pressure Switch · Boeing 737890
FAA SDR system
- Difficulty date
- February 27, 2018
- Submitted
- March 6, 2018
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35183
- Aircraft time
- 42,344 hours, 12,876 cycles
- Part
- Pressure Switch
- Part number
- 607551005
- Part serial
- 040021899
- Condition
- Faulted
- Location
- Fuel Boost
- Part time
- 109 hours, 44 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED. ACFT GROUNDED. REMOVED AND REPLACED GFI RELAY R18 IAW AMM 28-22-18-000-801, AND AMM 28-22-18-400-801. REMOVED NR 1 AFT BOOST PUMP & INSTALLED SERVICEABLE BOOST PUMP IAW AMM 28-22-41-000-801, & AMM 28-22-41-400-801. REMOVED AND REPLACED THE NR 1 AFT BOOST PUMP PRESSURE SWITCH IAW AMM 28-42-11-000-801, & 28-42-11-420-801. ACCOMPLISHED A FUEL BOOST NR 1 AFT OPS TEST & PRESSURE SWITCH OPS TEST & BOTH TESTED GOOD.