787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Fire Protection -
System Description
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 8.20.7
Lavatory Fire Protection
Lavatory fire protection consists of these systems:
• lavatory fire detection
• lavatory waste container fire extinguishing
Lavatory Fire Detection
Each lavatory has a single smoke detector. If smoke is detected, an aural alert
sounds in the lavatory and in the cabin. In addition, the lavatory call light flashes
and the master call light at the associated attendant station illuminates. The EICAS
advisory message SMOKE LAVATORY is displayed.
Lavatory Fire Extinguishing
Each lavatory has one fire extinguisher bottle. The bottle discharges through two
nozzles into the waste container. Extinguisher operation is automatic. There is no
flight deck indication.
Fire and Overheat Detection System Fault Test
The fire and overheat detection system has automatic and manual fault testing.
Fire and Overheat Detection System Automatic Fault Test
Fire and overheat detection system testing is automatic. The engine and APU
systems continuously monitor the fire/overheat detector loops for faults. The
cargo and wheel well systems continuously monitor for any system faults.
If a fault is detected, the system automatically reconfigures for single loop
operation. Complete system failures are indicated by an EICAS advisory message
for the failed system:
• DET FIRE ENG (L or R)
• DET FIRE APU
• DET FIRE CARGO (FWD or AFT)
Fire and Overheat Detection System Manual Fault Test
The fire and overheat detection systems can be tested manually by pushing and
holding the FIRE/OVERHEAT TEST switch.
The indications for a manual fire and overheat detection system test are:
• the fire bell sounds
• the nose wheel well crew call horn sounds (on the ground)
• the EICAS warning message FIRE TEST IN PROG is displayed
• these lights illuminate:
• the master WARNING lights
• the LEFT and RIGHT engine fire warning lights
February 15, 2010
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