A bombardier global 5;000 lost two wing fairing access doors in flight.

Attributes
ACN	885887
Time
Date	201004
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	Global 5000 (Bombardier)
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	Direct
Flight Plan	IFR
Component
Aircraft Component	Service/Access Door
Person 1
Function	Captain
Qualification	Air Traffic Control Fully Certified Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Maintenance Airframe Maintenance Powerplant
Experience	Air Traffic Control Radar 18 Flight Crew Last 90 Days 50 Flight Crew Total 8600 Flight Crew Type 314
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

A vibration similar to the landing gear out or spoilers deployed was felt at about FL250. At that moment and to the end of the flight no abnormal indications were displayed in the cockpit but we nonetheless reduced speed to 250 KIAS and airplane response was normal. We continued descent; deployed gear as normal and vibration was the same. Then a boom noise was heard but with no changes in aircraft systems indication nor aircraft behavior or responses. No emergency was reported as all functions were normal. Landed uneventfully and a post flight walk around was performed revealed two access doors missing from the bottom of the wing to fuselage fairing and the frame angle that supported them broken. We notified bombardier aerospace and an investigation was opened. The aircraft has 314 total hours; and the lost panels have not been removed nor disturbed for any maintenance since aircraft delivery. Bombardier engineering issued a repair engineering order to make a temporary repair.

Original NASA ASRS Text

Title: A Bombardier Global 5;000 lost two wing fairing access doors in flight.

Narrative: A vibration similar to the landing gear out or spoilers deployed was felt at about FL250. At that moment and to the end of the flight no abnormal indications were displayed in the cockpit but we nonetheless reduced speed to 250 KIAS and airplane response was normal. We continued descent; deployed gear as normal and vibration was the same. Then a boom noise was heard but with no changes in aircraft systems indication nor aircraft behavior or responses. No emergency was reported as all functions were normal. Landed uneventfully and a post flight walk around was performed revealed two access doors missing from the bottom of the wing to fuselage fairing and the frame angle that supported them broken. We notified Bombardier Aerospace and an investigation was opened. The aircraft has 314 total hours; and the lost panels have not been removed nor disturbed for any maintenance since aircraft delivery. Bombardier Engineering issued a Repair Engineering Order to make a temporary repair.

Data retrieved from NASA's ASRS site as of April 2012 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.