As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON GEAR RETRACTION, LEFT GEAR UNSAFE LIGHT REMAINED ILLUMINATED WITH LG LEVER IN THE UP POSITION. COMPLIED WITH RED TAB PROCEDURE. LEFT GEAR UNSAFE LIGHT REMAINED ILLUMINATED. REMOVED AND REPLACED LANDING GEAR ELECTRONIC MODULE B727 M/M 32-09-121-4. REMOVED AND REPLACED LT MLG UPLOCK SENSOR B727-200 M/M 32-61-081-4. OPS CKS GOOD PER 727-200 M/M 32-61-081-4. OPS CK'D LANDING GEAR ELECTRONICS MODULE PER 727-200 M/M 32-09-122-5, OPS CKS GOOD.