B737-700 flight crew could not find checklist for leading edge devices not extended.

Attributes
ACN	1756780
Time
Date	202008
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Landing
Flight Plan	IFR
Component
Aircraft Component	Flap/Slat Indication
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 100
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 250 Flight Crew Type 2804
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

Narrative:

On approach to ZZZ xxl; first officer called for landing checklist. We noticed no illuminated green 'leading edge flaps extended'. We did go-around and got vectors in the area at 3;000 feet while working the problem. I could not find a QRH (quick reference handbook) checklist for the omission of that light. The first officer (first officer) and I exchanged controls. He was also unable to find a QRH checklist for this problem. While being vectored we extended the flaps and could visually see by looking out our windows that the leading edge flaps were indeed extending normally; and that it was an indication problem. The following lights were not illuminating at all. Leading edge flap transit; leading edge flap extend; and the overhead leading edge devices indication lights. After triple checking no checklists would cover our problem; and after we verified the leading edge devices were fully extended; we made a normal flaps 30 uneventful landing. After landing the pseu (proximity switch electronics unit) light illuminated.

Original NASA ASRS Text

Title: B737-700 flight crew could not find checklist for Leading Edge Devices Not Extended.

Narrative: On approach to ZZZ XXL; First Officer called for Landing Checklist. We noticed no illuminated green 'leading edge flaps extended'. We did go-around and got vectors in the area at 3;000 feet while working the problem. I could not find a QRH (Quick Reference Handbook) checklist for the omission of that light. The FO (First Officer) and I exchanged controls. He was also unable to find a QRH checklist for this problem. While being vectored we extended the flaps and could visually see by looking out our windows that the leading edge flaps were indeed extending normally; and that it was an indication problem. The following lights were not illuminating at all. Leading Edge Flap Transit; Leading Edge Flap Extend; and the overhead Leading Edge devices indication lights. After triple checking no checklists would cover our problem; and after we verified the leading edge devices were fully extended; we made a normal flaps 30 uneventful landing. After landing the PSEU (Proximity Switch Electronics Unit) light illuminated.

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.