A300 captain reported landing gear extension failed resulting in manual gear extension.

Attributes
ACN	1626091
Time
Date	201903
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	A300
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	Landing Gear
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

On gear extension gear did not come down. 3 reds position detent 1. Switched to position detent 2; still 3 reds. Recycled gear still 3 reds no gear door open indications either. Hydraulic systems normal. Accomplished a go-around at 2;000 MSL. Climbed to 4;000 feet. ECAM displayed 'proc gravity gear ext.' first officer with QRH extended the gear using the crank. Got 3 greens with gear doors open. [Notified] ZZZ approach. Landed 08R and got towed in per QRH. Landing fuel 9.4.

Original NASA ASRS Text

Title: A300 Captain reported landing gear extension failed resulting in manual gear extension.

Narrative: On gear extension gear did not come down. 3 reds position detent 1. Switched to position detent 2; still 3 reds. Recycled gear still 3 reds no gear door open indications either. Hydraulic systems normal. Accomplished a go-around at 2;000 MSL. Climbed to 4;000 feet. ECAM displayed 'Proc gravity gear ext.' First officer with QRH extended the gear using the crank. Got 3 greens with gear doors open. [Notified] ZZZ approach. Landed 08R and got towed in per QRH. Landing fuel 9.4.

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.