A B737-300 flight crew returned to their departure airport after suffering the failure the IRS.

Attributes
ACN	1114943
Time
Date	201309
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	INS / IRS / IRU
Person 1
Function	First Officer
Experience	Flight Crew Last 90 Days 170 Flight Crew Type 3700
Person 2
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 152 Flight Crew Type 8000
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

On the taxi out after a normal pushback we noticed a terrain light. We recycled the terrain display and it extinguished. Normal takeoff roll followed until close to V1 when the toga V bars receded. We continued the takeoff and after above 4;000 ft we recycled toga to no avail. We turned left per the clearance and selected LNAV to go direct to mgm. It initially worked and then froze. We then received flags on the HSI and RDMI. While continuing our climb; remaining VFR and flying with the compass and flight data instruments; we pulled the QRH and looked at the IRS fail checklist. We elected to return to our departure airport to get it looked at. We entered a left downwind and landed uneventfully. After landing and at the gate; we noticed the IRS was completely black; inoperative and unresponsive to any inputs.

Original NASA ASRS Text

Title: A B737-300 flight crew returned to their departure airport after suffering the failure the IRS.

Narrative: On the taxi out after a normal pushback we noticed a terrain light. We recycled the terrain display and it extinguished. Normal takeoff roll followed until close to V1 when the TOGA V bars receded. We continued the takeoff and after above 4;000 FT we recycled TOGA to no avail. We turned left per the clearance and selected LNAV to go direct to MGM. It initially worked and then froze. We then received flags on the HSI and RDMI. While continuing our climb; remaining VFR and flying with the compass and flight data instruments; we pulled the QRH and looked at the IRS Fail checklist. We elected to return to our departure airport to get it looked at. We entered a left downwind and landed uneventfully. After landing and at the gate; we noticed the IRS was completely black; INOP and unresponsive to any inputs.

Data retrieved from NASA's ASRS site as of July 2013 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.