
Fleet reference
Digital multimeter
Cat III meter for 737 electrical power troubleshooting — IDG, TR, battery bus, and external-power circuits. Use insulated probes and observe the electrical-power safety tag-out.
- P/N
- 87V
- Alt
- 87V-MAX
ATA iSpec 2200
24-00
Tools, ground-support equipment, and part numbers for this 737 system.

Cat III meter for 737 electrical power troubleshooting — IDG, TR, battery bus, and external-power circuits. Use insulated probes and observe the electrical-power safety tag-out.