<< >> NASA ASRS Report 1413637, December 2016

Air carrier first officer reported a brief terrain warning while descending into a mountainous area airport in VMC conditions.

Attributes
ACN	1413637
Time
Date	201612
Local Time Of Day	1201-1800
Place
Locale Reference	MSO.Airport
State Reference	UT
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Medium Large Transport
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT

Narrative:

Descending into mso for an approach into runway 29; we received an egpws warning descending over the mountain range. Prior to the descent; my captain briefed me on some techniques and threats that come with montana mountain flying as I do not have much experience in the mountains. After being cleared for the visual approach; he coached me with relative headings; altitudes; and descent rates that he felt would be adequate to shoot the visual approach. As we were coming over the top of the last peak; we received the egpws warning. It happened so suddenly; and for such a short time that I didn't completely process the warning. During this time; my captain assured me that we were okay and to continue the descent as we had the terrain in sight. I disconnected the autopilot soon after; and landed without any further complications.

Related reports:

• A CRJ200 captain was descending at 1;300 FPM and below the g...
• Cargo aircraft first officer reported descending below clear...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: Air carrier First Officer reported a brief terrain warning while descending into a mountainous area airport in VMC conditions.

Narrative: Descending into MSO for an approach into Runway 29; we received an EGPWS warning descending over the mountain range. Prior to the descent; my Captain briefed me on some techniques and threats that come with Montana mountain flying as I do not have much experience in the mountains. After being cleared for the visual approach; he coached me with relative headings; altitudes; and descent rates that he felt would be adequate to shoot the visual approach. As we were coming over the top of the last peak; we received the EGPWS warning. It happened so suddenly; and for such a short time that I didn't completely process the warning. During this time; my Captain assured me that we were okay and to continue the descent as we had the terrain in sight. I disconnected the autopilot soon after; and landed without any further complications.

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.