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Crj-700 flight crew reported cabin depressurization related to a pneumatic bleed duct issue led to a diversion.
| Attributes | |
| ACN | 1566457 |
| Time | |
| Date | 201808 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet 700 ER/LR (CRJ700) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pneumatic Ducting |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Prior to the emergency we received the passenger dr out hndl caution message twice in flight which was associated with [a] maintenance write up. Approximately 10-15 minutes later; we received the right bleed duct (warning) message and immediately referenced the QRH. While looking through the QRH an associated bleed duct (caution) message appeared just as the QRH had described. While trying to resolve the bleed duct (caution) message we received the cabin altitude (caution) message appeared. Shortly after the cabin altitude (warning) message appeared. We [then] received a cabin altitude (warning) message [and] immediately donned our oxygen masks and established communications. The first officer was the pilot flying but transferred the controls to me as the PIC; and he immediately asked ATC for an emergency descent to 10;000 feet. After getting that clearance the PIC flew the plane down as quickly and safely as I could while the first officer continued to monitor the radios; also made sure that the flight attendants and passengers were okay and were not harmed. We leveled at 10;000 feet and agreed that everything had stabilized so we agreed to stop using oxygen. We agreed that [a nearby alternate] was the nearest airport; we were about 115-120NM (around 20 minutes) away. We requested direct and landed safely; parked at the gate and deplaned passengers normally via main cabin door.
Original NASA ASRS Text
Title: CRJ-700 flight crew reported cabin depressurization related to a pneumatic bleed duct issue led to a diversion.
Narrative: Prior to the emergency we received the PAX DR OUT HNDL caution message twice in flight which was associated with [a] maintenance write up. Approximately 10-15 minutes later; we received the R BLEED DUCT (warning) message and immediately referenced the QRH. While looking through the QRH an associated BLEED DUCT (caution) message appeared just as the QRH had described. While trying to resolve the BLEED DUCT (caution) message we received the CABIN ALT (caution) message appeared. Shortly after the CABIN ALT (warning) message appeared. We [then] received a CABIN ALT (warning) message [and] immediately donned our oxygen masks and established communications. The First Officer was the pilot flying but transferred the controls to me as the PIC; and he immediately asked ATC for an emergency descent to 10;000 feet. After getting that clearance the PIC flew the plane down as quickly and safely as I could while the First Officer continued to monitor the radios; also made sure that the flight attendants and passengers were okay and were not harmed. We leveled at 10;000 feet and agreed that everything had stabilized so we agreed to stop using oxygen. We agreed that [a nearby alternate] was the nearest airport; we were about 115-120NM (around 20 minutes) away. We requested direct and landed safely; parked at the gate and deplaned passengers normally via main cabin door.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.