Justin Edinburgh made several changes to the side that drew to Boreham Wood on January 6, George Elokobi making his first appearance since September 25 and partnering Bondz N’Gala who returned to the starting lineup.
Midfielder Ebou Adams, who arrived on loan from Norwich this week, made his debut while Lamar Reynolds made his first start for the O’s, while Dan Happe was named on the bench.
The O’s dominated early possession but it was the home side who had the first chance on goal as a corner was headed out to Frenchman Richard Gilot on the edge of the box, but his effort was well over the bar.
Dean Brill was forced to make a great save on the 10th minute, as Ibra Sekajji’s half-volley was tipped over the bar.
Macauley Bonne had a chance soon after, good work by Lamar Reynolds found Craig Clay at the edge of the box. The midfielder released Bonne but his effort lacked power and was saved.
The forward had another chance on the 22nd minute as a floated Joe Widdowson found him in the middle but his header lacked power and was collected by the keeper at his near post.
The home side were close to taking the lead on the 25th minute as Dean Beck’s cross from the right almost caught Dean Brill out as it hit the side-netting.
Both sides were finding it difficult to create any clear-cut chances, Bonne seeing his glanced header deflected wide by a defender while a similar barrier stopped Gillot’s driven effort from the edge of the box.
The O’s had a good chance to take the lead on the 41st minute as a quick counter attack gave McAnuff the chance to slide through Caprice, his chipped effort finding Lamar Reynolds at the back post but he couldn’t keep his volley down.
Both sides started the second half quickly, Ibra Sekajji hit the side netting after just a minute before Macauley Bonne lashed wide after the resulting goal-kick found its way through to the striker.
Bonne went close moments later as he cut inside at the edge of the box, curling an effort towards goal but Lincoln was able to palm it away.
The home side found themselves down to 10-men as Richard Gilot brought down Jake Caprice to earn a second yellow card.
Matt Harrold almost took full advantage of the deficit as he got on the end of a deep cross by Caprice but Lincoln managed to save at the second attempt.
The O’s went down to ten men as well as Joe Widdowson collected his second yellow card for a foul on the edge of the box. However, the deadlock was broken when Macauley Bonne headed home from close range.
Widdowson’s cross from the left was headed across goal by Harrold and the Zimbabwean was there to finish.
The home side equalised with just two minutes to go as Caprice sliced a clearance and it fell to Jimmy Muitt, whose driven effort soared into the top corner and send the game to extra-time.
Both sides started the extra period brightly, Jake Caprice smacking the post following a good build up while Lamar Reynolds couldn’t finish the rebound.
The O’s had a corner in the last minute of the first half of extra-time and Dan Happe saw his header cleared off the line before the ball found itself at the feet of Koroma and the substitute curls home from 25 yards.
Orient had the chance to wrap the game up in the final moments of extra-time as Bonne and Koroma broke. Bonne squared to the youngster but he forced a good save by Lincoln who was then called into action again seconds later as Koroma had another effort.
A similar O’s counter saw Reynolds with the chance to grab his first goal for the O’s but he put it over. Nonetheless, the O’s clinched a victory and confirmed their spot in the Third Round of the FA Trophy.
LEYTON ORIENT: Brill, Caprice, Widdowson, Elokobi (Happe 60’), N’Gala, Adams (Koroma 72’), Clay, McAnuff, Reynolds, Harrold (Judd 85’), Bonne
SUBS: Grainger, Mooney
GOALS: Bonne (82’), Koroma (105’)
BOOKED: Widdowson (24′), Clay (116′)
SENT OFF: Widdowson (79’)
BOGNOR REGIS: Lincoln, Davies, Campbell, Tuck, El-Abd (C), Adebowale (Rowe 112’), Whyte (Block 105’), Beck, Muitt, Sekajji (Charman 87’), Gilot
SUBS: Crane, Boughton
GOAL: Muitt (88’)
SENT OFF: Gilot (59’)