Small aircraft pilot momentarily entered an unusual attitude while trying to correct to the bur ILS ...

Attributes
ACN	1337854
Time
Date	201603
Local Time Of Day	0601-1200
Place
Locale Reference	BUR.Airport
State Reference	CA
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft Low Wing 1 Eng Retractable Gear
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Commercial Flight Crew Instrument
Experience	Flight Crew Last 90 Days 8 Flight Crew Total 1300 Flight Crew Type 30
Events
Anomaly	Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter Loss Of Aircraft Control

Narrative:

I was on an IFR flight plan to kbur. Weather at the time was a typical southern california marine layer day; with ceilings of roughly 1700 feet and tops around 4300 feet. I was using the autopilot at 4000 feet in IMC and was being vectored by so cal approach. I was cleared for the kbur ILS runway 8 inside of silex intersection but my autopilot did not capture the approach. I was slow to react to this and it was not until I crossed the final approach course that I disconnected the autopilot and tried to turn back on glideslope. I was above and left of the glideslope and made some strong corrections back on course. During this transition to hand flying; I glanced down at the autopilot and wondered why it hadn't captured. The aircraft briefly entered into an unusual attitude (pitching down and rolling right). I quickly recovered but at that point I had turned significantly off course to the south. So cal approach vectored me around again and I hand flew an uneventful approach.

Original NASA ASRS Text

Title: Small aircraft pilot momentarily entered an unusual attitude while trying to correct to the BUR ILS Runway 8 after the autopilot failed to capture the approach.

Narrative: I was on an IFR flight plan to KBUR. Weather at the time was a typical Southern California marine layer day; with ceilings of roughly 1700 feet and tops around 4300 feet. I was using the autopilot at 4000 feet in IMC and was being vectored by So Cal Approach. I was cleared for the KBUR ILS Runway 8 inside of SILEX intersection but my autopilot did not capture the approach. I was slow to react to this and it was not until I crossed the final approach course that I disconnected the autopilot and tried to turn back on glideslope. I was above and left of the glideslope and made some strong corrections back on course. During this transition to hand flying; I glanced down at the autopilot and wondered why it hadn't captured. The aircraft briefly entered into an unusual attitude (pitching down and rolling right). I quickly recovered but at that point I had turned significantly off course to the south. So Cal Approach vectored me around again and I hand flew an uneventful approach.

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.

Small aircraft pilot momentarily entered an unusual attitude while trying to correct to the bur ILS runway 8 after the autopilot failed to capture the approach.