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Crj-700 first officer reported executing the cabin altitude checklist for a amber caution message when the abnormal checklist may have been more appropriate.
| Attributes | |
| ACN | 1582832 |
| Time | |
| Date | 201809 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Regional Jet 700 ER/LR (CRJ700) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization System |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Weight And Balance |
Narrative:
Left pack was deferred on airplane. Some kind of maintenance issue caused cabin alt to rise; resulting in the cabin alt amber caution message.on climb out; aircraft X; we were climbing through about 25;000 feet and received a 'cabin altitude' amber msg. We noted the cabin altitude was climbing through about 9;800 feet; and ascending at a fairly rapid rate. The captain called for the 'cabin altitude' msg immediate action checklist; so we ran it. It then stated to go to [a specific emergency checklist]. It said the same thing and step 7 said to turn 'pass oxy on'. We selected it on and the passenger oxygen masks dropped. We descended to 10;000 feet and completed the 'cabin altitude' checklist; and got the cabin pressure back to a normal altitude. We decided to return back to ZZZ as a precaution. Looking back; it may have been more appropriate to initially run the abnormal checklist (since it was only a caution message); but given the cabin altitude seemed to be rising at a rapid rate; the captain decided to proceed with the immediate action checklist to remain on the conservative side of safety. We returned to ZZZ and decided to land about 2;000 lbs over weight so the uneasy passengers could get off the airplane.would initially run abnormal checklist as opposed to immediate action checklist. On immediate action checklist; it only says 'cabin altitude msg or emergency descent procedure' and then leads to [another emergency checklist].
Original NASA ASRS Text
Title: CRJ-700 First Officer reported executing the Cabin Altitude checklist for a amber caution message when the Abnormal Checklist may have been more appropriate.
Narrative: Left pack was deferred on airplane. Some kind of maintenance issue caused cabin alt to rise; resulting in the cabin alt amber caution message.On climb out; Aircraft X; we were climbing through about 25;000 feet and received a 'CABIN ALT' amber msg. We noted the cabin altitude was climbing through about 9;800 feet; and ascending at a fairly rapid rate. The Captain called for the 'CABIN ALT' msg Immediate Action Checklist; so we ran it. It then stated to go to [a specific emergency checklist]. It said the same thing and step 7 said to turn 'PASS OXY ON'. We selected it ON and the passenger oxygen masks dropped. We descended to 10;000 feet and completed the 'CABIN ALT' checklist; and got the cabin pressure back to a normal altitude. We decided to return back to ZZZ as a precaution. Looking back; it may have been more appropriate to initially run the abnormal checklist (since it was only a caution message); but given the cabin altitude seemed to be rising at a rapid rate; the Captain decided to proceed with the Immediate Action Checklist to remain on the conservative side of safety. We returned to ZZZ and decided to land about 2;000 lbs over weight so the uneasy passengers could get off the airplane.Would initially run abnormal checklist as opposed to Immediate Action Checklist. On Immediate Action Checklist; it only says 'CABIN ALT Msg or Emergency Descent Procedure' and then leads to [another emergency checklist].
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.